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3032849 | https://en.wikipedia.org/wiki/620%20Drakonia | 620 Drakonia | 620 Drakonia is a minor planet, specifically an asteroid orbiting in the asteroid belt. It was discovered October 26, 1906, in Taunton, Massachusetts, by American astronomer Joel Hastings Metcalf and given the preliminary designation 1906 WE. It may have been named for Drake University.
Photometric observations at the Palmer Divide Observatory in Colorado Springs, Colorado, in 2001 were used to build a light curve for this object. The asteroid displayed a rotation period of 5.49 ± 0.01 hours and a brightness variation of 0.56 ± 0.02 in magnitude.
References
External links
Lightcurve plot of 620 Drakonia, Palmer Divide Observatory, B. D. Warner (2001)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Background asteroids
Drakonia
Drakonia
E-type asteroids (Tholen)
19061026 |
3032850 | https://en.wikipedia.org/wiki/621%20Werdandi | 621 Werdandi | 621 Werdandi is a Themistian asteroid.
References
External links
Themis asteroids
Werdandi
Werdandi
FCX:-type asteroids (Tholen)
19061111 |
3032852 | https://en.wikipedia.org/wiki/622%20Esther | 622 Esther | 622 Esther is a minor planet orbiting the Sun.
The asteroid is named after the biblical figure Esther.
In 2001, the asteroid was detected by radar from the Arecibo Observatory at a distance of 1.11 AU. The resulting data yielded an effective diameter of .
References
External links
000622
Discoveries by Joel Hastings Metcalf
Named minor planets
000622
000622
19061113 |
3032853 | https://en.wikipedia.org/wiki/623%20Chimaera | 623 Chimaera | 623 Chimaera is a minor planet, specifically an asteroid orbiting in the asteroid belt.
The asteroid is the major body in its own asteroid family, the Chimaera Family, it is also 22 kilometres in radius and orbits more in the inner to mid asteroid belt, taking 4 years to complete an orbit.
Not much detail is really known about the asteroid.
References
External links
Chimaera asteroids
Chimaera
Chimaera
XC-type asteroids (Tholen)
19070122 |
3032861 | https://en.wikipedia.org/wiki/625%20Xenia | 625 Xenia | 625 Xenia is a minor planet orbiting the Sun. It was discovered by August Kopff in Heidelberg, Germany, on 11 February 1907. The name may have been inspired by the asteroid's provisional designation 1907 XN.
See also
USS Xenia, a U.S. Navy ship apparently named for the minor planet
References
External links
Background asteroids
Xenia
Xenia
Sa-type asteroids (SMASS)
19070211 |
3032870 | https://en.wikipedia.org/wiki/626%20Notburga | 626 Notburga | 626 Notburga is a large, dark asteroid orbiting the Sun in the asteroid belt.
References
External links
Background asteroids
Notburga
Notburga
CX-type asteroids (Tholen)
Xc-type asteroids (SMASS)
19070211 |
3032871 | https://en.wikipedia.org/wiki/627%20Charis | 627 Charis | 627 Charis is an asteroid and the parent body of the Charis family, located in the outer regions of the asteroid belt, approximately 49 kilometers in diameter. It was discovered on 4 March 1907, by German astronomer August Kopff at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after the Greek goddess Charis, a name which may have been inspired by the asteroid's provisional designation 1907 XS. ('Charis' is in Greek is spelled 'Χάρις'.)
Orbit and classification
Charis is the parent body of the Charis family (), an asteroid family of more than 800 known members. It orbits the Sun in the outer main-belt at a distance of 2.7–3.1 AU once every 4 years and 11 months (1,804 days; semi-major axis of 2.90 AU). Its orbit has an eccentricity of 0.06 and an inclination of 6° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Heidelberg in March 1907.
Physical characteristics
The overall spectral type for members of the Charis family is that of a C- and X-type. In the SMASS classification Charis is an X-type asteroid, while in the Tholen classification, its type is ambiguous, closest to an X- and somewhat similar to a carbonaceous B-type asteroid including a reported noisy spectrum (XB:). Conversely, the Wide-field Infrared Survey Explorer (WISE) characterized it as a primitive P-type asteroid.
Rotation period
Photometric observations of this asteroid by American astronomer Frederick Pilcher at the Organ Mesa Observatory () in Las Cruces, New Mexico, during May 2012 gave a well-defined lightcurve with a rotation period of 27.888 hours and a brightness variation of 0.35 in magnitude (). The result supersedes a tentative period of at least 24 hours obtained by French amateur astronomer Pierre Antonini in March 2011 ().
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, Charis measures between 38.018 and 62.68 kilometers in diameter and its surface has an albedo between 0.047 and 0.0925.
The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0786 and a diameter of 48.51 kilometers based on an absolute magnitude of 9.95.
Naming
This minor planet was named from Greek mythology, after the goddess Charis, the wife of Hephaestus after whom the minor planet was also named. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ().
References
External links
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000627
Discoveries by August Kopff
Named minor planets
000627
000627
19070304 |
3032872 | https://en.wikipedia.org/wiki/628%20Christine | 628 Christine | 628 Christine is a minor planet orbiting the Sun.
References
External links
000628
Discoveries by August Kopff
Named minor planets
000628
19070307 |
3032876 | https://en.wikipedia.org/wiki/630%20Euphemia | 630 Euphemia | 630 Euphemia is a mid-sized Eunomian asteroid.
Photometric observations at the Palmer Divide Observatory
during 2005 showed a best fit rotation period of 79.18 ± 0.02 hours with a brightness
variation of 0.2 ± 0.02 in magnitude. However, some uncertainty remains concerning the reliability of this result.
References
External links
Lightcurve plot of 630 Euphemia, Palmer Divide Observatory, B. D. Warner (2005)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Eunomia asteroids
Euphemia
Euphemia
Slow rotating minor planets
S-type asteroids
19070307 |
3032878 | https://en.wikipedia.org/wiki/629%20Bernardina | 629 Bernardina | 629 Bernardina is a minor planet orbiting the Sun.
References
External links
Background asteroids
Bernardina
Bernardina
X-type asteroids (SMASS)
19070307 |
3032887 | https://en.wikipedia.org/wiki/631%20Philippina | 631 Philippina | 631 Philippina is a minor planet orbiting the Sun that was discovered by German astronomer August Kopff on March 21, 1907.
Photometric of this asteroid made in 1981 gave a light curve with a period of 5.92 ± 0.01 hours with a brightness variation of 0.20 in magnitude. In 2007 lightcurve data showed that it rotates every 5.899 ± 0.001 hours.
See also
List of minor planets: 1–1000
References
External links
Background asteroids
Philippina
Philippina
S-type asteroids (Tholen)
S-type asteroids (SMASS)
19070321 |
3032891 | https://en.wikipedia.org/wiki/632%20Pyrrha | 632 Pyrrha | 632 Pyrrha is a minor planet orbiting the Sun.
Photometric observations of the minor planet in 2011 gave a rotation period of with an amplitude of in magnitude. This result rules out previous determinations of the period.
References
External links
Background asteroids
Pyrrha
Pyrrha
19070405 |
3032894 | https://en.wikipedia.org/wiki/633%20Zelima | 633 Zelima | 633 Zelima is a minor planet orbiting the Sun in the asteroid belt with a magnitude of 10.7.
The name may have been inspired by the asteroid's provisional designation 1907 ZM.
References
External links
Lightcurve plot of 633 Zelima, Palmer Divide Observatory, B. D. Warner (2006)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Eos asteroids
Zelima
Zelima
S-type asteroids (Tholen)
S-type asteroids (SMASS)
19070512 |
3032895 | https://en.wikipedia.org/wiki/634%20Ute | 634 Ute | 634 Ute is a minor planet orbiting the Sun.
References
External links
Background asteroids
Ute
Ute
X-type asteroids (SMASS)
19070512 |
3032897 | https://en.wikipedia.org/wiki/636%20Erika | 636 Erika | 636 Erika is a minor planet orbiting the Sun.
References
External links
Background asteroids
19070208
Erika
Erika |
3032898 | https://en.wikipedia.org/wiki/635%20Vundtia | 635 Vundtia | 635 Vundtia is a minor planet orbiting the Sun - though this claim has been disputed.
References
External links
Lightcurve plot of 635 Vundtia, Palmer Divide Observatory, B. D. Warner (2007)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Laodica asteroids
Vundtia
Vundtia
C-type asteroids (Tholen)
19070609 |
3032899 | https://en.wikipedia.org/wiki/637%20Chrysothemis | 637 Chrysothemis | 637 Chrysothemis is a Themistian asteroid.
References
External links
Themis asteroids
Chrysothemis
19070311
Chrysothemis |
3032900 | https://en.wikipedia.org/wiki/638%20Moira | 638 Moira | 638 Moira, also known as A907 JG, is a minor planet orbiting the Sun. First observed in 1906, 638 Moira was discovered to be an orbital body in 1907 by Joel Hastings Metcalf in Taunton, England. 638 Moira is a little over 59.5 km across and rotates once every 10 hours. Its farthest point from the sun is a little over 3au during its 4.5 year orbit, and it is classed as an L-type asteroid (SMASSII).
References
External links
Background asteroids
Moira
Moira
Ch-type asteroids (SMASS)
19070505 |
3032902 | https://en.wikipedia.org/wiki/639%20Latona | 639 Latona | 639 Latona is a minor planet, specifically an asteroid orbiting in the asteroid belt. It was discovered by German astronomer Karl Lohnert on July 19, 1907, at Heidelberg.
Photometric observations of this asteroid at Palmer Divide Observatory in Colorado Springs, Colorado, during 2007 gave a light curve with a period of 6.139 ± 0.002 hours and a brightness variation of 0.08 ± 0.01 in magnitude. This confirms period measurements of about 6.2 hours reported in 1987 and 2001.
This is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.
References
External links
Lightcurve plot of 639 Latona, Palmer Divide Observatory, B. D. Warner (2007)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Eos asteroids
Latona
Leto
Latona
S-type asteroids (Tholen)
19070719 |
3032905 | https://en.wikipedia.org/wiki/640%20Brambilla | 640 Brambilla | 640 Brambilla is a minor planet orbiting the Sun.
Brambilla is an Italian surname derived from Val Brembana in Italy.
References
External links
Background asteroids
Brambilla
19070829
G-type asteroids (Tholen)
Brambilla |
3032906 | https://en.wikipedia.org/wiki/641%20Agnes | 641 Agnes | 641 Agnes, provisional designation , is a stony Florian asteroid and slow rotator from the inner regions of the asteroid belt, approximately in diameter.
It was discovered on 8 September 1907, by German astronomer Max Wolf at Heidelberg Observatory in southern Germany. The meaning of the asteroids's name is unknown.
Classification and orbit
Agnes is a stony S-type asteroid and a member of the Flora family, one of the largest groups of stony asteroids in the asteroid belt. It orbits the Sun in the inner main-belt at a distance of 1.9–2.5 AU once every 3 years and 4 months (1,208 days). Its orbit has an eccentricity of 0.13 and an inclination of 2° with respect to the ecliptic.
The body's observation arc begins with a recovered observation at Vienna Observatory, one month after its official discovery observation at Heidelberg.
Physical characteristics
Rotation period
In March 1975, photometric observations by Swedish astronomer Claes-Ingvar Lagerkvist measured a period of 8.9 hours for Agnes. The lightcurve, however, was fragmentary and the result uncertain ().
In October 2013, the first reliable rotational lightcurve of Agnes was obtained by astronomers Frederick Pilcher, Lorenzo Franco and Luis Martinez at Organ Mesa and Balzaretto Observatory respectively. Lightcurve analysis gave a well-defined rotation period of 178.0 hours with a brightness variation of 0.55 magnitude (). The team also assumed a standard albedo for stony S-type asteroids of 0.20, calculated an absolute magnitude of 12.64, estimated a mean diameter of kilometers, and measured a V–R color index of 0.50.
With such a long rotation period, Agnes is a slow rotator, of which a few hundred minor planets are currently known.
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Agnes measures between in diameter, and its surface has an albedo between 0.21 and 0.30. The Collaborative Asteroid Lightcurve Link adopts the results obtained by Pilcher, and calculates a diameter of 8.81 kilometers.
Naming
Any reference of this minor planet's name to a person or occurrence is unknown.
Unknown meaning
Among the many thousands of named minor planets, Agnes is one of 120 asteroids, for which no official naming citation has been published. All of these low-numbered asteroids have numbers between and and were discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth.
References
External links
Occultation of Star HIP 103032 by 641 Agnes
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000641
000641
Discoveries by Max Wolf
Named minor planets
000641
19070908 |
3032910 | https://en.wikipedia.org/wiki/643%20Scheherezade | 643 Scheherezade | 643 Scheherezade is a minor planet orbiting the Sun. It was named after the fictional storyteller Sheherazad.
References
External links
Lightcurve plot of 643 Scheherezade, Palmer Divide Observatory, B. D. Warner (2005)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Cybele asteroids
Scheherezade
Scheherezade
P-type asteroids (Tholen)
19070908 |
3032911 | https://en.wikipedia.org/wiki/642%20Clara | 642 Clara | 642 Clara is a minor planet orbiting the Sun. Discovered by Max Wolf in 1907, it is named after one of the housekeepers in Wolf's household.
References
External links
Background asteroids
Clara
Clara
S-type asteroids (Tholen)
L-type asteroids (SMASS)
19070908 |
3032914 | https://en.wikipedia.org/wiki/644%20Cosima | 644 Cosima | 644 Cosima is a minor planet orbiting the Sun.
References
External links
Background asteroids
Cosima
Cosima
S-type asteroids (Tholen)
19070907 |
3032917 | https://en.wikipedia.org/wiki/646%20Kastalia | 646 Kastalia | 646 Kastalia is a minor planet orbiting the Sun, not to be confused with the near-Earth asteroid 4769 Castalia.
References
External links
Background asteroids
Kastalia
Kastalia
19070911 |
3032920 | https://en.wikipedia.org/wiki/645%20Agrippina | 645 Agrippina | 645 Agrippina, provisional designation 1907 AG, is a stony asteroid from the outer region of the asteroid belt, roughly 30 kilometers in diameter. It was discovered by American astronomer reverend Joel Metcalf at Taunton, Massachusetts, USA, on 13 September 1907.
The S-type asteroid orbits the Sun at a distance of 2.7–3.7 AU once every 5 years and 9 months (2,103 days). Its orbit shows an eccentricity of 0.15 and is tilted by 7 degrees to the plane of the ecliptic. A photometric light-curve analysis from the 1980s and a provisional observation in 2004 rendered a rotation period of 32.6 and 34.4 hours, respectively.
According to the surveys carried out by the Infrared Astronomical Satellite, IRAS, the Japanese Akari satellite, and the U.S.Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid has a dissimilar albedo in the range of 0.14 to 0.23, which leads to a varying estimate for its diameter from 28 to 36 kilometers. The Collaborative Asteroid Lightcurve Link publishes an albedo of 0.23 from an alternative result of the Supplemental IRAS Minor Planet Survey (SIMPS) and derives a slightly lower diameter of 27.9 kilometers.
The minor planet was named for two women of ancient Roman history. Agrippina the Elder (14 BCE – 33) was the daughter of the Roman statesman Marcus Vipsanius Agrippa, the wife of Germanicus and the mother of the Emperor Caligula. Her daughter, Agrippina the Younger (15–59 AD) was the mother of Emperor Nero. The naming might be influenced by the two letters of the provisional designation 1907 AG. In the Dictionary of Minor Planet Names, Lutz Schmadel supposes that the name originated from a list of female names from mythology and history, compiled by the Astronomisches Rechen-Institut (ARI) in 1913. The ARI then sent this list to a number of astronomers with the request to name their discoveries in order to avoid confusion, as the number of unnamed minor planet up to number 700 had grown significantly at the time.
References
External links
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Background asteroids
Agrippina
Agrippina
S-type asteroids (Tholen)
19070913 |
3032922 | https://en.wikipedia.org/wiki/647%20Adelgunde | 647 Adelgunde | 647 Adelgunde, provisional designation , is a stony asteroid from the inner regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 11 September 1907, by German astronomer August Kopff at Heidelberg Observatory in southern Germany. The origin of the asteroid's name is unknown, it may be derived from the name of Princess Adelgunde of Bavaria.
Orbit and classification
Adelgunde orbits the Sun in the inner main-belt at a distance of 2.0–2.9 AU once every 3 years and 10 months (1,393 days). Its orbit has an eccentricity of 0.19 and an inclination of 7° with respect to the ecliptic. As no precoveries were taken, Adelgundes observation arc begins with its official discovery observation.
Physical characteristics
Diameter and albedo
According to the space-based observations by NASA's Wide-field Infrared Survey Explorer and its subsequent NEOWISE mission, Adelgunde measures between 9.72 and 9.93 kilometers in diameter, and its surface has a high albedo of 0.488–0.514.
Based on the survey carried out by the Japanese Akari satellite, it measures 13.7 kilometers with an albedo of 0.26. The Collaborative Asteroid Lightcurve Link (CALL) agrees with the results obtained by AKARI, assumes a standard albedo for stony asteroids of 0.20, and calculates a diameter of 15.5 kilometers with an absolute magnitude of 11.41. As the diameters are typically inferred from the body's absolute brightness and its reflectively, a higher albedo results in a smaller diameter.
Spectral type
Adelgunde is an X-type asteroid on the Tholen taxonomic scheme, while CALL assumes it to be a stony S-type asteroid.
Rotation period
In August 2006, a rotational lightcurve of Adelgunde was obtained from photometric observations by astronomers Pierre Antonini and Antonio Vagnozzi. Lightcurve analysis gave a well-defined rotation period of hours with a brightness variation of 0.28 in magnitude ().
Name
The origin of this minor planet's name is unknown. It is speculated that the name comes from a list created in 1913 by the Astronomisches Rechen-Institut (ARI) containing suggestions of female names from history and mythology for the naming of minor planets. At the time, the naming process was not well developed and the ARI feared inconsistencies and potential confusion. The list was sent to several German astronomers, including Kopff, with the invitation to name all of their made discoveries up to number 700.
Unknown meaning
Among the many thousands of named minor planets, Adelgunde is one of 120 asteroids, for which no official naming citation has been published. All of these low-numbered asteroids have numbers between and and were discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth.
References
External links
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000647
Discoveries by August Kopff
Named minor planets
000647
19070911 |
3032923 | https://en.wikipedia.org/wiki/649%20Josefa | 649 Josefa | 649 Josefa is a minor planet, specifically an asteroid, orbiting primarily in the asteroid belt. Photometric observations provide a rotation period of with a brightness variation of in magnitude.
References
External links
Background asteroids
Josefa
Josefa
Sq-type asteroids (SMASS)
19070911 |
3032929 | https://en.wikipedia.org/wiki/650%20Amalasuntha | 650 Amalasuntha | 650 Amalasuntha is a minor planet orbiting the Sun that was discovered by German astronomer August Kopff on October 4, 1907, at Heidelberg. It was named after Amalasuntha, the queen of the Ostrogoths from 526 to 534 AD.
The name may have been inspired by the asteroid's provisional designation 1907 AM.
Photometric observations of this asteroid during 2007 at the Organ Mesa Observatory in Las Cruces, New Mexico, were used to create a light curve plot. This showed a rotation period of 16.582 ± 0.001 hours and a brightness variation of 0.44 ± 0.03 magnitude during each cycle.
References
External links
Nysa asteroids
Amalasuntha
Amalasuntha
Unclassifiable asteroids (Tholen)
19071004 |
3032932 | https://en.wikipedia.org/wiki/648%20Pippa | 648 Pippa | 648 Pippa is a minor planet orbiting the Sun. Photometric measurements made from the Oakley Southern Sky Observatory during 2012 gave a light curve with a period of 9.263 ± 0.001 hours and a variation in brightness of 0.31 ± 0.03 in magnitude. This is inconsistent with a period estimate of 5.2 ± 0.3 made in 2004. It was named after Pippa, the title character in Gerhardt Hauptmann's novel Und Pippa tanzt.
References
External links
000648
Discoveries by August Kopff
Named minor planets
000648
19070911 |
3033019 | https://en.wikipedia.org/wiki/651%20Antikleia | 651 Antikleia | 651 Antikleia is a main-belt asteroid discovered on 4 October 1907 by August Kopff at the Heidelberg-Königstuhl State Observatory. It is named for Anticlea the mother of Odysseus.
The name may have been inspired by the asteroid's provisional designation 1907 AN.
Antikleia is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.
References
External links
Eos asteroids
Antikleia
Antikleia
S-type asteroids (Tholen)
19071004 |
3033020 | https://en.wikipedia.org/wiki/652%20Jubilatrix | 652 Jubilatrix | 652 Jubilatrix is a minor planet, specifically an asteroid orbiting in the asteroid belt. It was discovered on 4 November 1907 by Austrian astronomer Johann Palisa, and was named in honor of the 60th anniversary of the reign of Franz Joseph. The asteroid is orbiting at a distance of with a period of and an eccentricity of 0.127. It is a member of the Maria dynamic family. Photometric observations provide a rotation period of with a brightness variation of in magnitude.
References
External links
Background asteroids
19071104
Jubilatrix
Jubilatrix |
3033022 | https://en.wikipedia.org/wiki/653%20Berenike | 653 Berenike | 653 Berenike is a main-belt asteroid discovered on 27 November 1907 by Joel Hastings Metcalf at Taunton, Massachusetts. It is named after Berenice II of Egypt, after whom the constellation Coma Berenices is also named. The name may have been inspired by the asteroid's provisional designation 1907 BK.
Berenike is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.
References
External links
Eos asteroids
Berenike
Berenike
S-type asteroids (Tholen)
K-type asteroids (SMASS)
19071127 |
3033028 | https://en.wikipedia.org/wiki/654%20Zelinda | 654 Zelinda | 654 Zelinda is a minor planet orbiting the Sun that was discovered on 4 January 1908 by German astronomer August Kopff. On favorable oppositions, it can be as bright as magnitude 10.0, as on January 30, 2016.
In 1988, this object was detected with radar from the Arecibo Observatory at a distance of 0.89 AU. The measured radar cross-section was 2,200 km2. Measurements made using the adaptive optics system at the W. M. Keck Observatory give a diameter estimate of 131 km. This is 13% smaller than the diameter estimated from the IRAS observatory measurements. It is roughly triangular in shape.
References
External links
Lightcurve plot of 654 Zelinda, Palmer Divide Observatory, B. D. Warner (2007)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Background asteroids
Zelinda
Zelinda
C-type asteroids (Tholen)
Ch-type asteroids (SMASS)
19080104 |
3033031 | https://en.wikipedia.org/wiki/656%20Beagle | 656 Beagle | 656 Beagle, provisional designation , is an asteroid from the outer regions of the asteroid belt, approximately in diameter. It was discovered on 22 January 1908, by German astronomer August Kopff at the Heidelberg Observatory. It is the principal body and namesake of the small Beagle cluster located within the Themis family. The C-type asteroid is likely highly elongated and has a rotation period of 7.0 hours. It was named for Charles Darwin's ship, .
Orbit and classification
Beagle is the principal body and namesake of the Beagle cluster (), a small asteroid family of less than 150 known members, located within the much larger Themis family () of carbonaceous asteroids, which is named after 24 Themis. It orbits the Sun in the outer main-belt at a distance of 2.7–3.6 AU once every 5 years and 7 months (2,042 days; semi-major axis of 3.15 AU). Its orbit has an eccentricity of 0.13 and an inclination of 1° with respect to the ecliptic.
Naming
This minor planet was named after , with which naturalist Charles Darwin sailed around the world from 1831 to 1836. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ().
Physical characteristics
In the SDSS-based taxonomy, Beagle is a carbonaceous C-type asteroid, in line with the overall spectral type of the Beagle and Themis family.
Rotation period
In April 2004, a rotational lightcurve of Beagle was obtained from photometric observations by John Menke at the Menke Observatory. Lightcurve analysis gave a rotation period of hours with a very high brightness amplitude of 1.2 magnitude, indicative of a non-spherical, elongated shape ().
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Beagle measures 62.6 kilometers in diameter and its surface has an albedo of 0.045. The Collaborative Asteroid Lightcurve Link adopts the SIMPS albedo of 0.0625 and a diameter of 53.17 kilometers based on an absolute magnitude of 10.0.
References
External links
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000656
000656
Discoveries by August Kopff
Named minor planets
19080122 |
3033033 | https://en.wikipedia.org/wiki/657%20Gunl%C3%B6d | 657 Gunlöd | 657 Gunlöd is a dark background asteroid orbiting in the intermediate asteroid belt, approximately in diameter. It was discovered on 23 January 1908, by astronomer August Kopff at the Heidelberg Observatory in southwest Germany. It has an albedo of around 0.042 and a rotation period of 15.7 hours.
References
External links
Background asteroids
Gunlod
Gunlod
19080123 |
3033034 | https://en.wikipedia.org/wiki/658%20Asteria | 658 Asteria | 658 Asteria is a minor planet orbiting the Sun.
References
External links
Koronis asteroids
Asteria
Asteria
S-type asteroids (Tholen)
19080123 |
3033037 | https://en.wikipedia.org/wiki/661%20Cloelia | 661 Cloelia | 661 Cloelia is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on February 22, 1908.
Cloelia is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.
The planet is named after the Ancient Roman woman Cloelia.
The name may have been inspired by the asteroid's provisional designation 1908 CL.
References
External links
Eos asteroids
Cloelia
Cloelia
S-type asteroids (Tholen)
K-type asteroids (SMASS)
19080222
Cultural depictions of Cloelia |
3033038 | https://en.wikipedia.org/wiki/660%20Crescentia | 660 Crescentia | 660 Crescentia is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on January 8, 1908.
The name may have been inspired by the asteroid's provisional designation 1908 CC. Peter Ting points out that the Rev. Joel Metcalf of Taunton (Massachusetts) discovered six asteroids with unexplained names, though listed in Lutz Schmadel's book. Ting used an on-line planetarium website to help with the location of some of the planets, playing back to the night of discovery. He noticed that there was a crescent moon (33%) low in the western sky and wonders if the Rev. Metcalf could have named the asteroid for the Moon. Crescentia would be a very unusual name for a person but not for a phase of the Moon.
Crescentia is a member of the dynamic Maria family of asteroids that most likely formed as the result of a collisional breakup of a parent body.
References
External links
Lightcurve plot of 660 Crescentia, Palmer Divide Observatory, B. D. Warner (2009)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Maria asteroids
Crescentia
Crescentia
S-type asteroids (Tholen)
19080108 |
3033041 | https://en.wikipedia.org/wiki/662%20Newtonia | 662 Newtonia | 662 Newtonia is a minor planet, specifically an asteroid orbiting mostly in the asteroid belt.
The asteroid's major details are relatively unknown
References
External links
Background asteroids
Newtonia
19080330
Newtonia |
3033042 | https://en.wikipedia.org/wiki/663%20Gerlinde | 663 Gerlinde | 663 Gerlinde is a minor planet orbiting the Sun.
References
External links
Lightcurve plot of 663 Gerlinde, Palmer Divide Observatory, B. D. Warner (2005)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Background asteroids
Gerlinde
Gerlinde
X-type asteroids (Tholen)
19080624 |
3033043 | https://en.wikipedia.org/wiki/664%20Judith | 664 Judith | 664 Judith is a minor planet orbiting the Sun. It was named after the biblical character Judith.
References
External links
000664
Discoveries by August Kopff
Named minor planets
000664
19080624 |
3033047 | https://en.wikipedia.org/wiki/665%20Sabine | 665 Sabine | 665 Sabine is a minor planet orbiting the Sun that was discovered by German astronomer Wilhelm Lorenz on July 22, 1908.
Photometric observations of this asteroid at the Oakley Observatory in Terre Haute, Indiana during 2006 gave a light curve with a period of 4.294 ± 0.001 hours and a brightness variation of 0.50 ± 0.04 in magnitude.
References
External links
Background asteroids
Sabine
Sabine
19080722 |
3033052 | https://en.wikipedia.org/wiki/666%20Desdemona | 666 Desdemona | 666 Desdemona is a stony asteroid from the middle region of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 23 July 1908, by German astronomer August Kopff at Heidelberg Observatory in southern Germany, and named after Desdemona, character in Shakespeare's The Tragedy of Othello, the Moor of Venice. The name may have been inspired by the asteroid's provisional designation 1908 DM.
Classification and orbit
Desdemona is a stony S-type asteroid that orbits the Sun in the middle main-belt at a distance of 2.0–3.2 AU once every 4 years and 2 months (1,525 days). Its orbit has an eccentricity of 0.24 and an inclination of 8° with respect to the ecliptic. As no precoveries were taken, the asteroid's observation arc begins with its official discovery observation at Heidelberg.
Physical characteristics
Rotation period
In 2013, a rotational lightcurve for this asteroid was obtained from photometric observations made by astronomer Anna Marciniak at Poznań Observatory, Poland. It gave a rotation period of hours with a brightness variation of 0.22 in magnitude (), superseding a period from in 2000, obtained at the Californian Santana Observatory (), which gave a slightly longer period of hours and an amplitude of 0.11 ().
Between 2004 and 2006, three more lightcurves were constructed from photometric observations, but they were all fragmentary and based on results with less than full coverage ().
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer (WISE) with its subsequent NEOWISE mission, the asteroid's surface has an albedo between 0.095 and 0.106. While the Collaborative Asteroid Lightcurve Link agrees with the space-based IRAS and Akari surveys on a diameter of approximately 27 kilometers, the results from WISE and NEOWISE found a larger diameter of 31.5 to 32.7 kilometers, respectively.
Naming
This minor planet was named after Desdemona, the wife of Othello in the play The Tragedy of Othello, the Moor of Venice written by William Shakespeare in 1604 (also see ). It is presumed that the naming of "Desdemona" could have been inspired by the two letters of its provisional designation (1908 DM). One of the satellites of Uranus (Uranus X), discovered by the Voyager 2 in 1986, is also named Desdemona ().
Notes
References
External links
Photométrie des astéroïdes et effets de sélection Stéphane Fauvaud: rotation period of (666) Desdemona, slide #12
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000666
Discoveries by August Kopff
Named minor planets
19080723 |
3033054 | https://en.wikipedia.org/wiki/667%20Denise | 667 Denise | 667 Denise is a minor planet orbiting the Sun.
The name may have been inspired by the asteroid's provisional designation 1908 DN.
References
External links
Background asteroids
Denise
Denise
19080723 |
3033055 | https://en.wikipedia.org/wiki/668%20Dora | 668 Dora | 668 Dora is an asteroid orbiting in the asteroid belt located roughly between the orbits of the planets Mars and Jupiter.
The name may have been inspired by the asteroid's provisional designation 1908 DO.
References
External links
Dora asteroids
Dora
Dora
Ch-type asteroids (SMASS)
19080727 |
3033057 | https://en.wikipedia.org/wiki/669%20Kypria | 669 Kypria | 669 Kypria is a minor planet orbiting the Sun that was discovered by German astronomer August Kopff on August 20, 1908.
This is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.
References
External links
Eos asteroids
Kypria
Kypria
S-type asteroids (Tholen)
19080820 |
3033061 | https://en.wikipedia.org/wiki/671%20Carnegia | 671 Carnegia | 671 Carnegia is a minor planet orbiting the Sun.
References
External links
Background asteroids
Carnegia
Carnegia
Xk-type asteroids (SMASS)
19080921 |
3033063 | https://en.wikipedia.org/wiki/672%20Astarte | 672 Astarte | 672 Astarte is a minor planet orbiting the Sun.
References
External links
Background asteroids
Astarte
19080921
Astarte |
3033064 | https://en.wikipedia.org/wiki/673%20Edda | 673 Edda | 673 Edda is a minor planet orbiting the Sun. It was discovered 20 September 1908 by the American astronomer Joel Hastings Metcalf, and was named for the Norse Edda literary works. The name may also have been inspired by the asteroid's provisional designation 1908 EA. This asteroid is orbiting at a distance of with a period of and an eccentricity of 0.012. The orbit is close to a 5:2 mean motion resonance with Jupiter, which is located at .
The long rotation period and low brightness amplitude of this asteroid make it more challenging for measurement of the rotation period. An extensive photometry campaign in 2015 provided a period of . The unusual light curve suggests that the asteroid shape is very asymmetric. It is a stony S-type asteroid that spans a mean diameter of .
References
External links
Background asteroids
Edda
Edda
S-type asteroids (Tholen)
S-type asteroids (SMASS)
19080920 |
3033068 | https://en.wikipedia.org/wiki/674%20Rachele | 674 Rachele | 674 Rachele is a minor planet orbiting the Sun. It was discovered by Wilhelm Lorenz on 28 October 1908 in Heidelberg, and was named by orbit computer Emilio Bianchi after his wife. This is classified as an S-type asteroid, indicating a stony composition.
Measurements made using the adaptive optics system at the W. M. Keck Observatory give a size estimate of 89 km. It has a size ratio of 1.08 between the major and minor axes. By comparison, measurements reported in 1998 from the IRAS observatory give a similar size of 97 km and a ratio of 1.15.
References
External links
Background asteroids
Rachele
Rachele
S-type asteroids (Tholen)
S-type asteroids (SMASS)
19081028 |
3033069 | https://en.wikipedia.org/wiki/675%20Ludmilla | 675 Ludmilla | 675 Ludmilla is a minor planet orbiting the Sun. It was named after Mikhail Glinka's opera Ruslan and Lyudmila.
Mass and density
In 2012, a study by Benoît Carry estimated a mass of for Ludmilla based on its gravitational influence on other Solar System bodies. However, given Ludmilla's diameter of , this mass implies an extremely high density . Such a high density is unphysical, so this mass and density estimate of Ludmilla has been rejected by Carry. Because of Ludmilla's small size, its gravitational influence on other bodies is extremely difficult to detect and may lead to highly inaccurate mass and density estimates. A more recent study in 2019 determined a mass of for Ludmilla, which corresponds to a density of for a diameter of .
References
External links
000675
Discoveries by Joel Hastings Metcalf
Named minor planets
000675
000675
19080830 |
3033073 | https://en.wikipedia.org/wiki/676%20Melitta | 676 Melitta | 676 Melitta is a minor planet orbiting the Sun. It is classified as a main belt asteroid. The name, Melitta, is the Attic Greek form of the name Melissa—a reference both to the nymph of ancient Greek mythology, and to the minor planet's discoverer, Melotte.
References
External links
000676
Discoveries by Philibert Jacques Melotte
Named minor planets
000676
19090116 |
3033076 | https://en.wikipedia.org/wiki/677%20Aaltje | 677 Aaltje | 677 Aaltje is a main-belt minor planet orbiting the Sun, discovered by August Kopff at Heidelberg on January 18, 1909. It was named after the Dutch singer Aaltje Noordewier-Reddingius.
This object has a geometric albedo of 0.2794. Photometric observations during 2008 showed a rotation period of 16.6076 ± 0.0006 hours and a brightness variation of 0.30 ± 0.02 in magnitude.
677 Aaltje is orbiting within the 7/3 Kirkwood gap. This means it has a 7:3 orbital resonance with Jupiter, completing seven orbits for every three orbits of the planet. For smaller objects, this would typically lead to orbital instability, causing it to shift to a different orbital period. However, 677 Aaltje is too large for its orbit to have been moved by more than about 0.01 AU over the lifetime of the Solar System. What is more likely is that orbital interactions with the dwarf planet Ceres may have shifted it to the present-day orbit—the orbit of 677 Aaltje leads it into relatively close encounters with Ceres.
References
External links
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000677
Discoveries by August Kopff
Named minor planets
000677
19090118 |
3033078 | https://en.wikipedia.org/wiki/678%20Fredegundis | 678 Fredegundis | 678 Fredegundis is a minor planet orbiting the Sun. It was discovered 22 January 1909 from Heidelberg by German astronomer K. Wilhelm Lorenz, and was named after the French opera Frédégonde. This object is orbiting at a distance of with a period of and an eccentricity (ovalness) of 0.22. The orbital plane is inclined at an angle of 6.1° to the plane of the ecliptic
This appears to be an M-type asteroid in the Tholen classification and X-type in the Bus and Binzel system. It spans a girth of approximately 42 km and is spinning with a rotation period of 11.6201 hours. Radar observations suggest a bifurcated structure consistent with a contact binary.
References
External links
Lightcurve plot of 678 Fredegundis, Palmer Divide Observatory, B. D. Warner (2008)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Background asteroids
Fredegundis
Fredegundis
X-type asteroids (SMASS)
19090122 |
3033080 | https://en.wikipedia.org/wiki/679%20Pax | 679 Pax | 679 Pax is a minor planet orbiting the Sun that was discovered by German astronomer August Kopff on January 28, 1909. It is named after Pax, a Roman goddess. It is orbiting the Sun with a period of 4.16 years and an eccentricity of 0.31.
Measurements using the adaptive optics at the W. M. Keck Observatory give a mean diameter of 62 km. This is 16% larger than the diameter estimated using the IRAS observatory. The asteroid is elongated with a size ratio of 1.66 ± 0.23 between the major and minor axes. Photometric measurements reported in 1982 gave a rotation period of 8.452 hours. The asteroid's pole of rotation lies 32° away from the plane of the ecliptic.
Polarimetric study of this asteroid reveals anomalous properties that suggests the regolith consists of a mixture of low and high albedo material. This may have been caused by fragmentation of an asteroid substrate with the spectral properties of CO3/CV3 carbonaceous chondrites.
References
See also
2037 Tripaxeptalis
External links
Background asteroids
Pax
Pax
I-type asteroids (Tholen)
K-type asteroids (SMASS)
19090128 |
3033081 | https://en.wikipedia.org/wiki/680%20Genoveva | 680 Genoveva | 680 Genoveva is a minor planet orbiting the Sun. It was named after the play Genoveva by Friedrich Hebbel.
The name may have been inspired by the asteroid's provisional designation 1909 GW, as W is pronounced 'v' in German, as is V in Latinate names such as 'Genoveva'.
References
External links
000680
Discoveries by August Kopff
Named minor planets
000680
19090422 |
3033084 | https://en.wikipedia.org/wiki/681%20Gorgo | 681 Gorgo | 681 Gorgo is a minor planet orbiting the Sun.
'Gorgo' is German for Gorgon. However, Ingrid van Houten-Groeneveld and Antonio Paluzie-Borrell suggest it may refer to "King of Salamine, in the 5th century B.C., who accompanied Xerxes in Greece."
References
External links
Background asteroids
Gorgo
Gorgo
19090513 |
3033085 | https://en.wikipedia.org/wiki/682%20Hagar | 682 Hagar | 682 Hagar (prov. designation: or ) is an Eunomia asteroid from the central regions of the asteroid belt. It was discovered on 17 June 1909, by German astronomer August Kopff at the Heidelberg-Königstuhl State Observatory. The presumed S-type asteroid has a short rotation period of 4.9 hours and measures approximately in diameter. Possibly inspired by the asteroid's provisional designation "1909 HA", it was named for the biblical woman Hagar.
Orbit and classification
When applying the hierarchical clustering method to its proper orbital elements, Hagar is a core member of the Eunomia family (), a prominent family of stony S-type asteroids and the largest one in the intermediate main belt with more than 5,000 known members. It orbits the Sun in the central main-belt at a distance of 2.2–3.1 AU once every 4 years and 4 months (1,579 days; semi-major axis of 2.65 AU). Its orbit has an eccentricity of 0.17 and an inclination of 12° with respect to the ecliptic. The body's observation arc begins at Vienna Observatory on 28 June 1909, just eleven nights after prior to its official discovery observation by August Kopff at Heidelberg.
Naming
This minor planet was named after the biblical woman Hagar from the Book of Genesis. She was an Ancient Egyptian servant of Sarah and the mother of Abraham's firstborn, Ishmael. The asteroid's name may have been inspired by the two letters of its provisional designation, "1909 HA". It is also speculated that the name comes from a list created in 1913 by the Astronomisches Rechen-Institut (ARI) containing suggestions of female names from history and mythology for the naming of minor planets (AN 196, 137). At the time, the naming process was not well developed and the ARI feared inconsistencies and potential confusion. The list was sent to several German astronomers, including Kopff, with the invitation to name all of their made discoveries up to number 700.
Physical characteristics
Based on the overall spectral type of the Eunomia family, Hagar is possibly a common, stony S-type asteroid. However, observations by Pilcher (see below) found a V–R color index of , which rather suggest a low albedo of a carbonaceous C-type asteroid.
Rotation period
In August 2013, a rotational lightcurve of Hagar was obtained from nine nights of photometric observations by Frederick Pilcher at the Organ Mesa Observatory in Arizona. Analysis gave a well-defined, classically shaped bimodal lightcurve with a rotation period of () hours and a high brightness variation of magnitude (). At the same time, Alexander Kurtenkov at Sofia University, and a team of Bulgarian students obtained a concurring period of hours with an amplitude of magnitude (). In July 2017, French and Swiss astronomers René Roy and Raoul Behrend confirmed the period measuring a nearly identical rotation of () hours and an amplitude of magnitude ().
Poles
Two lightcurves, published in 2016, using modeled photometric data from the Lowell Photometric Database (LPD) and other sources, gave a concurring sidereal period of () and () hours, respectively. Each modeled lightcurve also determined two spin axes of (93.0°, −71.0°) and (277.0°, −35.0°), as well as (56.0°, −78.0°) and (255.0°, −57.0°) in ecliptic coordinates (λ, β), respectively.
Diameter and albedo
American photometrist Frederick Pilcher also determined a diameter of kilometers based on a visual absolute magnitude of , and an albedo of 0.057 derived from its measured V–R color index (see above). The Collaborative Asteroid Lightcurve Link adopts Pilcher's albedo of 0.057 and derives a diameter of 19.57 kilometers.
Notes
References
External links
Lightcurve Database Query (LCDB), at www.minorplanet.info
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000682
Discoveries by August Kopff
Named minor planets
19090617
Hagar |
3033086 | https://en.wikipedia.org/wiki/683%20Lanzia | 683 Lanzia | 683 Lanzia is a minor planet orbiting the Sun. It was discovered July 23, 1909, by Max Wolf at the Landessternwarte Heidelberg-Königstuhl observatory and was named in honor of Lanz, founder of the Heidelberg Academy of Sciences. Photometric observations made in 2003 at the Santana Observatory in Rancho Cucamonga, California, give a synodic rotation period of 8.63 ± 0.005 hours. The light curve shows a brightness variation of 0.15 ± 0.04 in magnitude.
Observations during two last occultation 18 and 22 December 2010 (P.Baruffetti, G. Tonlorenzi - Massa, G. Bonatti - Carrara, R. Di Luca - Bologna (Italy), C. Schnabel - S. Estebe, J. Rovira - Moja (Spain)) measured a 122.5 km diameter (medium) and an Albedo of 0.0705 compatible with carbonaceous asteroids (C group).
References
External links
000683
Discoveries by Max Wolf
Named minor planets
19090723 |
3033090 | https://en.wikipedia.org/wiki/684%20Hildburg | 684 Hildburg | 684 Hildburg (prov. designation: or ) is a stony background asteroid from the inner regions of the asteroid belt. It was discovered on 8 August 1909, by German astronomer August Kopff at the Heidelberg-Königstuhl State Observatory in southwest Germany. The S-type asteroid has a rotation period of 15.9 hours and measures approximately in diameter. Any reference to the origin of the asteroid's name is unknown.
Orbit and classification
Hildburg is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the inner main-belt at a distance of 2.3–2.5 AU once every 3 years and 9 months (1,385 days; semi-major axis of 2.43 AU). Its orbit has an eccentricity of 0.04 and an inclination of 6° with respect to the ecliptic. The body's observation arc begins at Heidelberg Observatory on 19 August 1909, just eleven nights after its official discovery observation.
Naming
This minor planet's name may have been inspired by the two letters of its provisional designation, "1909 HD". However, any reference to a person or occurrence is unknown. It is speculated that the name comes from a list created in 1913 by the Astronomisches Rechen-Institut (ARI) containing suggestions of female names from history and mythology for the naming of minor planets (AN 196, 137). At the time, the naming process was not well developed and the ARI feared inconsistencies and potential confusion. The list was sent to several German astronomers, including Kopff, with the invitation to name all of their made discoveries up to number 700. It is therefore unlikely that this asteroid's name refers to a known person such as Austrian actress (1862–1942).
Unknown meaning
Among the many thousands of named minor planets, Hildburg is one of 120 asteroids for which has been published. All of these asteroids with an unknown meaning have low numbers, beginning with and ending with , all discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth.
Physical characteristics
Hildburg is a common stony S-type asteroid according to observations by Richard Binzel conducted at McDonald and Cerro Tololo observatories in May 1984.
Rotation period
In March 2014, a rotational lightcurve of Hildburg was obtained from photometric observations by Italian astronomer Andrea Ferrero at the Bigmuskie Observatory in Mombercelli, Italy. Lightcurve analysis gave a rotation period of hours with a brightness variation of magnitude (). However, the result is ambiguous and allows for an alternative period solution of 11.92 hours. In April 2008, French amateur astronomer René Roy determined a period of hours with a low amplitude of magnitude (). In May 1984, the object's first measurement by Richard Binzel gave a period of and an amplitude of 0.23 magnitude ().
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), Hildburg measures () and () kilometers in diameter and its surface has an albedo of () and (), respectively.
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroid of 0.20 and derives a diameter of 19.28 kilometers based on an absolute magnitude of 10.94. The WISE team also published an alternative mean-diameter () and an albedo of (). On 23 August 2004, an asteroid occultation gave a best-fit ellipse dimension of () with a low quality rating of 1. These timed observations are taken when the asteroid passes in front of a distant star.
References
External links
Lightcurve Database Query (LCDB), at www.minorplanet.info
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000684
Discoveries by August Kopff
Named minor planets
19090808 |
3033094 | https://en.wikipedia.org/wiki/685%20Hermia | 685 Hermia | 685 Hermia is an S-type asteroid belonging to the Flora family in the Main Belt. Its diameter is about 11 km and it has an albedo of 0.281.
References
External links
Flora asteroids
Hermia
Hermia
S-type asteroids
19090812 |
3033098 | https://en.wikipedia.org/wiki/686%20Gersuind | 686 Gersuind | 686 Gersuind is a minor planet orbiting the Sun that was discovered by German astronomer August Kopff on 15 August 1909 from Heidelberg. It was named after a character in Gerhart Hauptmann's play Gersuind.
This object is the namesake of a family of 40–207 asteroids that share similar spectral properties and orbital elements; hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination.
References
External links
000686
Discoveries by August Kopff
Named minor planets
000686
19090815 |
3033100 | https://en.wikipedia.org/wiki/687%20Tinette | 687 Tinette | 687 Tinette is a minor planet, specifically an asteroid orbiting primarily in the asteroid belt. It was discovered by Austrian astronomer Johann Palisa on 16 August 1909 from Vienna and was given the preliminary designation 1909 HG.
Photometric observations at the Palmer Divide Observatory in Colorado Springs, Colorado, in 1999 were used to build a light curve for this object. The asteroid displayed a rotation period of 7.40 ± 0.02 hours and a brightness variation of 0.25 ± 0.01 in magnitude.
References
External links
Lightcurve plot of 687 Tinette, Palmer Divide Observatory, B. D. Warner (1999)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Background asteroids
Tinette
Tinette
X-type asteroids (Tholen)
X-type asteroids (SMASS)
19090816 |
3033102 | https://en.wikipedia.org/wiki/688%20Melanie | 688 Melanie | 688 Melanie (prov. designation: or ) is a dark background asteroid from the central regions of the asteroid belt. It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 25 August 1909. The carbonaceous C-type asteroid has a rotation period of 18.9 hours and measures approximately in diameter. Any reference to the origin of the asteroid's name is unknown.
Orbit and classification
Melanie is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the central asteroid belt at a distance of 2.3–3.1 AU once every 4 years and 5 months (1,618 days; semi-major axis of 2.7 AU). Its orbit has an eccentricity of 0.14 and an inclination of 10° with respect to the ecliptic. The body's observation arc begins at Vienna Observatory in July 1913, or four years after its official discovery observation.
Naming
This minor planet was named in 1910, by Otto Prelinger who collaborated with Johann Palisa and Max Wolf on the photographic star charts (AN 186, 15). Any reference of this minor planet name to a person or occurrence is unknown.
Unknown meaning
Among the many thousands of named minor planets, Melanie is one of 120 asteroids for which has been published. All of these asteroids with an unknown meaning have low numbers, beginning with and ending with , all discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth.
Physical characteristics
In both the Bus-DeMeo classification and the Bus–Binzel SMASS classification, Melanie is a common, carbonaceous C-type asteroid.
Rotation period
In September 2011, a rotational lightcurve of Melanie was obtained from photometric observations by Robert Stephens at the Santana Observatory in California. Lightcurve analysis gave a well-defined rotation period of hours with a low brightness variation of magnitude (). The first but unsuccessful attempt to measure the objects period was undertaken by Richard Binzel in June 1984. Other observations by French amateur astronomers Laurent Bernasconi (2005) and René Roy (2011) gave a period of () and () hours and an amplitude of and magnitude, respectively (). Also in 2011, an ambiguous period of () with an alternative period solution of 16.10 hours and an amplitude of () magnitude was determined ().
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), and the Japanese Akari satellite, Melanie measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively.
The Collaborative Asteroid Lightcurve Link adopts the albedo obtained by IRAS and derives a diameter of 41.38 kilometers using an absolute magnitude of 10.59. Alternative mean-diameters published by the WISE team include (), (), (), () and () with a corresponding albedo of (), (), (), () and (). On 4 August 2002, an asteroid occultation gave a best-fit ellipse dimension of () with a low quality rating of 0. These timed observations are taken when the asteroid passes in front of a distant star.
References
External links
Lightcurve Database Query (LCDB), at www.minorplanet.info
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000688
Discoveries by Johann Palisa
Named minor planets
000688
19090825 |
3033103 | https://en.wikipedia.org/wiki/689%20Zita | 689 Zita | 689 Zita is a minor planet orbiting the Sun. It was named after Zita of Bourbon-Parma, the last empress of Austria-Hungary.
References
External links
Background asteroids
Zita
Zita
CX:-type asteroids (Tholen)
19090912 |
3033104 | https://en.wikipedia.org/wiki/690%20Wratislavia | 690 Wratislavia | 690 Wratislavia is a minor planet orbiting the Sun. Wratislavia was discovered on October 16, 1909. IRAS data shows it is about 135 km in diameter.
Wratislavia has been studied by radar.
References
External links
Discovery Circumstances: Numbered Minor Planets (1)-(5000) Minor Planet Center
Rotational Period Determination of 690 Wratislavia
Background asteroids
Wratislavia
Wratislavia
CPF-type asteroids (Tholen)
19091016 |
3033106 | https://en.wikipedia.org/wiki/691%20Lehigh | 691 Lehigh | 691 Lehigh is a minor planet (the earlier term for an asteroid) orbiting the Sun, discovered in 1909. It is named "Lehigh" after Lehigh University, where its orbit was calculated in the Masters Thesis of Joseph B. Reynolds, following the observations of amateur astronomer Joel Metcalf.
References
External links
Planet Lehigh: Early Astronomy, Lehigh University – Special Collections
Lightcurve plot of 691 Lehigh, Palmer Divide Observatory, B. D. Warner (2009)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Background asteroids
Lehigh
Lehigh
Lehigh University
CD:-type asteroids (Tholen)
19091211 |
3033108 | https://en.wikipedia.org/wiki/693%20Zerbinetta | 693 Zerbinetta | 693 Zerbinetta is a minor planet orbiting the Sun. It was discovered on 21 September 1909 by August Kopff in Heidelberg. It was named after a character in Richard Strauss' opera Ariadne auf Naxos.
Between 2003 and 2022, 693 Zerbinetta has been observed to occult seventeen stars.
References
Further reading
External links
ASTROMETRIC UPDATE: OCCULTATION BY (693) ZERBINETTA - 2014 APR 23
ASTROMETRIC UPDATE: OCCULTATION BY (693) ZERBINETTA - 2014 Sep 30
000693
Discoveries by August Kopff
Named minor planets
000693
19090921 |
3033110 | https://en.wikipedia.org/wiki/694%20Ekard | 694 Ekard | 694 Ekard is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on November 7, 1909. The asteroid's name comes from the reverse spelling of Drake University in Des Moines, Iowa, where Seth Barnes Nicholson and his wife calculated its orbit.
Photometric observations of this asteroid gave a light curve with a period of 5.925 hours and a brightness variation of 0.50 in magnitude. Measurements of the thermal inertia of 694 Ekard give a value of around 100–140 J m−2 K−1 s−1/2, compared to 50 for lunar regolith and 400 for coarse sand in an atmosphere.
13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 101 km. Four separate stellar occultation events involving this asteroid were observed from multiple sites in 2009. The resulting chords matched a least squares equivalent diameter of .
References
External links
Background asteroids
Ekard
Ekard
CP:-type asteroids (Tholen)
19091107 |
3033114 | https://en.wikipedia.org/wiki/692%20Hippodamia | 692 Hippodamia | 692 Hippodamia, provisional designation 1901 HD, is a stony asteroid from the outer region of the asteroid belt, about 45 kilometers in diameter. It was discovered on 5 November 1901, by the German astronomers Max Wolf and August Kopff at Heidelberg Observatory in southern Germany. Nine years later, the body was rediscovered by August Kopff at its apparition in 1910.
Description
The S-type asteroid orbits the Sun at a distance of 2.8–4.0 AU once every 6 years and 3 months (2,272 days). Its orbit is tilted by 26 degrees to the plane of the ecliptic and shows an eccentricity of 0.17. Based on its orbital elements, it is a member of the Cybele family. Named after the 65 Cybele, the group consists of relatively low-eccentric asteroids, which have a semi-major axis around 3.4 AU, dwelling in-between the Hungaria and the outermost Hilda family of asteroids.
According to the surveys carried out by the Infrared Astronomical Satellite, IRAS, the Japanese Akari satellite, and the Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the body has an albedo between 0.18 and 0.20, and several independent and concurring photometric light-curve analysis rendered a well-defined rotation period of 8.99 hours.
The minor planet was named after Hippodamia, a figure from Greek mythology. It is believed the naming might have been influenced by the two letters of the provisional designation "1901 HD", a common practice of the discoverers. Hippodamia is the daughter of King Oenomaus of Pisa and wife of Pelops. She bribed Myrtilus, her father's charioteer, to remove a spoke from the royal chariot wheels so that Pelops could win her. Oenomaus had already defeated and killed 13 other suitors whom he had challenged to chariot races. After killing Oenomaus, Pelops murdered Myrtilus. These murders were primal sins, all paid for later by the many troubles of the house of Atreus.
692 Hippodamia has been observed to occult three stars, between 2020 and 2022.
References
External links
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000692
Discoveries by Max Wolf
Discoveries by August Kopff
Named minor planets
000692
19011105 |
3033115 | https://en.wikipedia.org/wiki/695%20Bella | 695 Bella | 695 Bella is a minor planet orbiting the Sun.
Although this asteroid has dynamic properties that make it a candidate for the Maria family, the spectral properties of the object indicate it is most likely an interloper. Instead, it may have been spalled off from 6 Hebe or its parent body. 695 Bella and 6 Hebe orbit on opposite sides of the 3:1 Kirkwood gap, and the two have similar orbital elements.
References
External links
Maria asteroids
Bella
Bella
S-type asteroids (Tholen)
19091107 |
3033117 | https://en.wikipedia.org/wiki/696%20Leonora | 696 Leonora | 696 Leonora is a Meliboean asteroid orbiting the Sun in the asteroid belt. It was discovered 10 January 1910 by American astronomer Joel Hastings Metcalf, at Taunton, Massachusetts. It was named by Arthur Snow of the United States Naval Observatory, who computed the orbit for the planet, after his wife, Mary Leonora Snow.
References
External links
Lightcurve plot of 696 Leonora, Palmer Divide Observatory, B. D. Warner (2005)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Meliboea asteroids
Leonora
Leonora
XC-type asteroids (Tholen)
19100110 |
3033118 | https://en.wikipedia.org/wiki/697%20Galilea | 697 Galilea | 697 Galilea is a minor planet orbiting the Sun. It was named in honor of Galileo Galilei, as it was discovered just after the 300th anniversary of his discovery of the Galilean moons.
References
External links
Background asteroids
Galilea
Galilea
C-type asteroids (Tholen)
19100214
Galileo Galilei |
3033121 | https://en.wikipedia.org/wiki/698%20Ernestina | 698 Ernestina | 698 Ernestina (prov. designation: or ) is a background asteroid, approximately in diameter, located in the outer regions of the asteroid belt. It was discovered on 5 March 1910, by German astronomer Joseph Helffrich at the Heidelberg-Königstuhl State Observatory. The presumed carbonaceous C-type asteroid has a rotation period of 5.0 hours. It was named after Ernst Wolf, son of German astronomer and prolific discoverer of minor planets, Max Wolf.
Orbit and classification
Ernestina is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the outer asteroid belt at a distance of 2.5–3.2 AU once every 4 years and 10 months (1,773 days; semi-major axis of 2.87 AU). Its orbit has an eccentricity of 0.11 and an inclination of 12° with respect to the ecliptic. The asteroid was first observed as at Heidelberg Observatory on 28 November 1908. The body's observation arc begins with its official discovery observation on 5 March 1910.
Naming
This minor planet was named after Ernst Wolf, son of German astronomer Max Wolf (1863–1932), who has discovered many asteroids at Heidelberg including some of the first near-Earth objects and Jupiter trojans. The was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ().
Physical characteristics
Ernestina is an assumed carbonaceous C-type asteroid. In a taxonomic classification based on MOVIS near-infrared colors, the asteroid's preliminary determined Cgx-type was ultimately rejected and its final class changed to "undefined" (U). MOVIS data has been obtained by the VISTA Hemisphere Survey using the VISTA telescope at Paranal Observatory in Chile.
Rotation period
In October 2005, a rotational lightcurve of Ernestina was obtained from photometric observations by an international collaboration led by Donald Pray at Carbuncle Hill Observatory . Lightcurve analysis gave a well-defined rotation period of hours with a brightness variation of magnitude (). Alternative period determinations in ascending order include: by Gordana Apostolovska in 2011 (), by Laurent Bernasconi in 2002 (), by astronomers at the Palomar Transient Factory in 2010 (), by René Roy in 2017 (), by David Polishook in 2005 (), and by Violeta Ivanova in 2002 ().
Poles
Two lightcurves, published in 2016, using modeled photometric data from the Lowell Photometric Database (LPD) and other sources, gave a concurring sidereal period of () and () hours, respectively. Each modeled lightcurve also determined two spin axes of (213.0°, −66.0°) and (76.0°, −49.0°), as well as (282.0°, −79.0°) and (114.0°, −45.0°) in ecliptic coordinates (λ, β), respectively.
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite, the Infrared Astronomical Satellite IRAS and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), Ernestina measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1064 and a diameter of 26.92 kilometers based on an absolute magnitude of 10.9. The WISE team also published an alternative mean-diameter () and an albedo of ().
References
External links
Lightcurve Database Query (LCDB), at www.minorplanet.info
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000698
Discoveries by Joseph Helffrich
Named minor planets
19100305 |
3033123 | https://en.wikipedia.org/wiki/699%20Hela | 699 Hela | 699 Hela is a Mars crossing asteroid. It was discovered on 5 June 1910 at Heidelberg by German astronomer Joseph Helffrich, and may have been named after Hel, the Norse ruler of the underworld. This asteroid is orbiting the Sun at a distance of with a period of and an eccentricity of 0.41. The orbital plane is inclined at an angle of 15.3° to the plane of the ecliptic.
With an absolute magnitude of 11.7, the asteroid is about 12–27 km in diameter. It is classified as a stony Sk or Sq-type asteroid in the SMASS taxonomy. Photometry data used to produce light curves provide a rotation period of . The lightcurve inversion method was used to build a shape model with a rounded form and an equatorial bulge.
References
External links
Lightcurve plot of 699 Hela, Palmer Divide Observatory, B. D. Warner (1999)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Mars-crossing asteroids
Hela
Hela
S-type asteroids (Tholen)
Sq-type asteroids (SMASS)
19100605 |
3033125 | https://en.wikipedia.org/wiki/700%20Auravictrix | 700 Auravictrix | 700 Auravictrix is an asteroid belonging to the Flora family in the Main Belt. Its diameter is about 15 km and it has an albedo of 0.246. Its rotation period is 6.075 hours.
References
External links
Flora asteroids
1910 in science
19100605
Auravictrix
Auravictrix |
3033127 | https://en.wikipedia.org/wiki/659%20Nestor | 659 Nestor | 659 Nestor is a dark Jupiter trojan from the Greek camp, approximately in diameter. It was discovered on 23 March 1908, by German astronomer Max Wolf at Heidelberg Observatory in southern Germany, and named after King Nestor from Greek mythology. The carbonaceous Jovian asteroid belongs to the 20 largest Jupiter trojans and has a rotation period of 15.98 hours.
Orbit and classification
Nestor is a dark Jovian asteroid orbiting in the leading Greek camp at Jupiter's Lagrangian point, 60° ahead its orbit in a 1:1 resonance (see Trojans in astronomy). It is also a non-family asteroid in the Jovian background population.
It orbits the Sun at a distance of 4.6–5.8 AU once every 11 years and 9 months (4,294 days; semi-major axis of 5.17 AU). Its orbit has an eccentricity of 0.12 and an inclination of 5° with respect to the ecliptic. As no precoveries were taken, the body's observation arc begins with its official discovery observation at Heidelberg in March 1908.
Naming
This minor planet was named from Greek mythology after Nestor, the king of Pylos. He was an Argonaut and counselor to the Greeks at Troy. Nestor fought against the centaurs and participated in the hunt for the Calydonian Boar. The asteroid was named by the German Astronomische Gesellschaft during a meeting at Breslau in 1910.
Physical characteristics
In the Barucci classification, Nestor is classified as a carbonaceous C-type asteroid (C0), while in the Tholen taxonomy, its spectral type is ambiguous, closest to an X-type and somewhat similar to that of a C-type (XC). In the Lightcurve Data Base it is assumed to be a primitive P-type. Its V–I color index of 0.79 is unusually low for most Jovian asteroids (typically above 0.9).
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Nestor measures between 107.06 and 112.32 kilometers in diameter and its surface has an albedo between 0.035 and 0.040. The Collaborative Asteroid Lightcurve Link an albedo of and a diameter of kilometers based on an absolute magnitude of 8.99.
On 30 June 2006, a dimensional estimate was also obtained from an occultation event by David Gault, when the asteroid eclipsed the star "TYC 6854-00630" (as designated in the Tycho Catalogue) for a duration of 9.52 seconds. Based on this time period, a cross section with the minor and major occultation axes at kilometers was inferred. The quality rating is 1 ("no fit").
Rotation period
In January 1988, a first rotational lightcurve of Nestor was obtained from photometric observations by MIT-astronomer Richard P. Binzel showing a rotation period of hours ().
In August 1995, Italian astronomer Stefano Mottola observed the asteroid with the Bochum 0.61-metre Telescope at ESO's La Silla Observatory, Chile, and derived a period of hours with a brightness variation of magnitude ().
In January and February 2014, two lightcurves in the R-band were obtained at the Palomar Transient Factory, California. Lightcurve analysis gave two concurring periods of and hours with an amplitude of 0.24 and 0.22, respectively ().
References
External links
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000659
Discoveries by Max Wolf
Named minor planets
000659
19080323
Nestor (mythology) |
3033128 | https://en.wikipedia.org/wiki/670%20Ottegebe | 670 Ottegebe | 670 Ottegebe is a minor planet orbiting the Sun. In 2007 lightcurve data showed that Ottegebe rotates every 10.041 ± 0.002 hours. The name refers to a character in Gerhardt Hauptmann's play Der arme Heinrich. It is orbiting close to a 5:2 mean motion resonance with Jupiter, which is located at .
References
External links
000670
Discoveries by August Kopff
Named minor planets
000670
19080820 |
3033143 | https://en.wikipedia.org/wiki/Arne%20Henden | Arne Henden | Arne Henden (born 1950) is a retired American observational astronomer, instrument and software specialist, and co-discoverer of a minor planet. He formerly served as director of the American Association of Variable Star Observers (AAVSO). The asteroid 33529 Henden is named after him.
Early life
Henden was born in Huron, South Dakota, but as the son of an engineer in the U.S. Army Corps of Engineers, he would call several places home as he grew up with his parents and two sisters. His first astronomical brush happened when he had a chance to look at Saturn through the 24" Clarke refractor at the Lowell Observatory in Flagstaff, Arizona.
Henden gained his Bachelor of Science in Astrophysics in 1972, and his Masters in Physics in 1975 both from the University of New Mexico in Albuquerque. In 1978 he continued to gain a Masters of Science in 1978 and a Ph.D. in 1985 in Astronomy, both from the Indiana University Bloomington.
Work
Henden moved to Ohio State University to work on the Large Binocular Telescope after gaining his doctorate. He also built several imagers and spectrographs for the 1.8-meter Perkins telescope.
in 1992, he returned to work at the United States Naval Observatory Flagstaff Station (NOFS) as a senior research scientist, the site where his love for astronomy first started. At NOFS, he specialized in visual and near-IR imaging systems and co-discovered 239046 Judysyd, a faint asteroid of the main-belt, in collaboration with astronomer Stephen Levine on 25 February 2006. Henden was also part of the team that created specifications for the Discovery Channel's 4.2m telescope. He has also worked on the Sloan Digital Sky Survey and consulted for the Radio Astronomy Institute in developing a robotic observatory near the Grand Canyon.
In the Spring of 2004, Henden was named director of the American Association of Variable Star Observers (AAVSO), an organization he had long been a member of.
Henden has authored more than 100 articles in peer-reviewed publications as either primary or co-author. Henden has also positioned himself as a specialist in photometry by writing one of the classic texts in the subject: Astronomical Photometry (1978: Willman-Bell) Henden has worked extensively with amateurs interested in variable stars and minor planet astrometry mainly through the AAVSO.
Awards and honors
He was elected a Legacy Fellow of the American Astronomical Society in 2020.
33529 Henden, a main-belt asteroid discovered by American amateur astronomer Charles Juels in 1999, was officially named in his honor by IAU's Minor Planet Center on 18 September 2005 ().
References
External links
Arne Henden Biography at AAVSO
AAVSO Website
1950 births
Living people
American astronomers
Discoverers of minor planets
Indiana University Bloomington alumni
Ohio State University faculty
People from Huron, South Dakota
University of New Mexico alumni
Fellows of the American Astronomical Society |
3033236 | https://en.wikipedia.org/wiki/606%20Brang%C3%A4ne | 606 Brangäne | 606 Brangäne, provisional designation , is an asteroid from the central regions of the asteroid belt, approximately in diameter. It was discovered on 18 September 1906, by astronomer August Kopff at the Heidelberg Observatory in southwest Germany. The unusual K-type asteroid is the namesake of the small Brangäne family and has a rotation period of 12.3 hours. It was named after Brangaine, a character from the opera Tristan und Isolde by Richard Wagner.
Orbit and classification
Brangäne is the principal body of the stony Brangäne family, a small asteroid family of less than 200 known members. It orbits the Sun in the central main-belt at a distance of 2.0–3.2 AU once every 4 years and 2 months (1,520 days; semi-major axis of 2.59 AU). Its orbit has an eccentricity of 0.22 and an inclination of 9° with respect to the ecliptic.
Physical characteristics
In the SMASS classification, Brangäne is an uncommon K-type asteroid, while in the Tholen classification its spectral type is ambiguous, closest to a T-type and somewhat similar to that of an S- and D-type.
Rotation period
In November 2006, a rotational lightcurve of Brangäne was obtained from photometric observations by French amateur astronomers Raymond Poncy and René Roy. Lightcurve analysis gave a rotation period of hours with a brightness amplitude of 0.20 magnitude ().
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Brangäne measures between 28.15 and 36.18 kilometers in diameter and its surface has an albedo between 0.096 and 0.13. The Collaborative Asteroid Lightcurve Link adopts an albedo of 0.1075 and a diameter of 36.96 kilometers, based on an absolute magnitude of 10.2, from Petr Pravec's revised WISE-data.
Naming
This minor planet was named after Brangaine, a character from the opera Tristan und Isolde by Richard Wagner. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ().
References
External links
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000606
Discoveries by August Kopff
Named minor planets
606 Brangäne
000606
000606
19060918 |
3033245 | https://en.wikipedia.org/wiki/702%20Alauda | 702 Alauda | 702 Alauda , provisional designation , is a carbonaceous asteroid and binary system from the outer asteroid belt, approximately 190 kilometers in diameter. It is the parent body of the Alauda family. Discovered in 1910 by German astronomer Joseph Helffrich at Heidelberg Observatory, it was named after the lark (alauda). Its small moon, named Pichi üñëm, was discovered in 2007.
Satellite
Alauda's satellite Pichi üñëm provisionally known as , was discovered on 26 July 2007 from observations using adaptive-optics imaging with the European Southern Observatory (ESO) 8-m Very Large Telescope (VLT) on Cerro Paranal, Chile. It is about 3.5 km in diameter (assuming it has the same albedo as the primary) and orbits Alauda in a nearly circular orbit at a distance of . Pichi üñëm takes 4.91 days to complete one orbit.
It was named Pichi üñëm (Mapuche pronunciation: , approximately ), meaning "little bird" in the Mapuche language of Chile, the country from which the moon was discovered.
Orbital characteristics
Alauda has been identified as the largest member of the Alauda family, a dynamical family of bright carbonaceous asteroids with more than a thousand known members. Other members of this family include: 581 Tauntonia, 1101 Clematis, 1838 Ursa, 3139 Shantou, 3325 TARDIS, 4368 Pillmore, 5360 Rozhdestvenskij, 5815 Shinsengumi, and many others. Alauda's moon may be a result of the collision that created the asteroid family.
Physical characteristics
The discovery and tracking of Alauda's moon enabled Alauda's mass to be determined. The discoverers of the moon, Patricio Rojo and Jean-Luc Margot, estimated Alauda's mass to be (6.057 ± 0.36) kg and its density to be (1.57 ± 0.5) g/cm3.
Occultations
Alauda has been observed to occult stars on several occasions, providing important information on its size and shape. It produced occultations on 2001-07-12 and 2004-04-21. It may have occulted an apparent magnitude 9.5 star in the constellation of Gemini on 2009-10-17 at 08:18 UT. This event should have been visible from Uruguay, Argentina, and Chile.
References
External links
Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
000702
Discoveries by Joseph Helffrich
Named minor planets
000702
000702
000702
000702
19100716 |
3033247 | https://en.wikipedia.org/wiki/701%20Oriola | 701 Oriola | 701 Oriola is a main belt asteroid. This C-type asteroid shows possible broad absorption which may be explained by either magnesium-rich amorphous pyroxene or crystalline silicate. This likely accounts for the relatively high albedo as an outer-belt asteroid.
References
External links
Background asteroids
Oriola
Oriola
C-type asteroids (Tholen)
19100712 |
3033271 | https://en.wikipedia.org/wiki/705%20Erminia | 705 Erminia | 705 Erminia is a minor planet orbiting the Sun. Its name derives from the comic opera Erminie. An occultation on 8 December 2014 gave 3 chords, with one measurement suggesting a small moon 6-10 kilometers wide at a distance of 400 kilometers to the primary.
See also
List of Solar System objects by size
References
External links
Lightcurve plot of (705) Erminia, Antelope Hills Observatory
Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Background asteroids
Erminia
Erminia
Binary asteroids
X-type asteroids (Tholen)
C-type asteroids (SMASS)
19101006 |
3033283 | https://en.wikipedia.org/wiki/706%20Hirundo | 706 Hirundo | 706 Hirundo (prov. designation: or ) is an elongated background asteroid, located in the central region of the asteroid belt. It was discovered by German astronomer Joseph Helffrich at the Heidelberg Observatory on 9 October 1910. The carbonaceous C-type asteroid (Cgh) has a rotation period of 22.0 hours and measures approximately in diameter. It was named after the bird genus Hirundo, commonly known as swallows.
Orbit and classification
Hirundo is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.
It orbits the Sun in the central asteroid belt at a distance of 2.2–3.3 AU once every 4 years and 6 months (1,647 days; semi-major axis of 2.73 AU). Its orbit has an eccentricity of 0.19 and an inclination of 14° with respect to the ecliptic. The body's observation arc begins at Vienna Observatory on 16 October 1910, or six nights after its official discovery observation by Joseph Helffrich at Heidelberg.
Naming
This minor planet was named after bird genus Hirundo, a group of passerines in the family Hirundinidae (swallows and martins). "Hirundo" is Latin word for swallow. They are found all over the world with the exception of New Zealand and the polar regions. Known for their graceful flight and regular migrations, swallows feature a short bill with a wide gape, small weak feet, and typically a deeply forked tail. They feed on insects caught on the wing. The was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ().
Physical characteristics
In both the Bus–Binzel (SMASS-II) and the Bus–DeMeo classification, Hirundo is a carbonaceous C-type asteroid (Cgh).
Rotation period and poles
In September 2000, a rotational lightcurve of Hirundo was obtained from photometric observations by American Brian Warner at the Palmer Divide Observatory in Colorado. Lightcurve analysis gave a rotation period of hours with a high brightness variation of magnitude, indicative of an elongated shape (). During the same opposition, Bill Holliday measures a period of () and an amplitude of () magnitude at his River Oaks Observatory in New Braunfels, Texas (). Further observations by René Roy (2011), Patrice Le Guen (2018), and Anaël Wünsche and Raoul Behrend (2020) determined a period of (), () and () with an amplitude of (), () and () magnitude, respectively ().
Two lightcurves, published in 2016, using modeled photometric data from the Lowell Photometric Database (LPD) and other sources, gave a concurring period of () and () hours, respectively. Each modeled lightcurve also determined two spin axes of (92°, 66°) and (244°, 54°), as well as (91°, 70°) and (250°, 45°) in ecliptic coordinates (λ, β), respectively.
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), Hirundo measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively.
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0853 and a diameter of 28.70 kilometers based on an absolute magnitude of 11. The WISE-team also published two alternative mean-diameters of () and () with a corresponding albedos of () and ().
Notes
References
External links
Lightcurve Database Query (LCDB), at www.minorplanet.info
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000706
Discoveries by Joseph Helffrich
Named minor planets
000706
19101009 |
3033286 | https://en.wikipedia.org/wiki/707%20Steina | 707 Steina | 707 Steina is a minor planet, specifically an asteroid orbiting in the asteroid belt.
The light curve of 707 Steina shows a periodicity of , during which time the brightness of the object varies by in magnitude.
References
External links
Background asteroids
Steina
Steina
Slow rotating minor planets
19101222 |
3033287 | https://en.wikipedia.org/wiki/708%20Raphaela | 708 Raphaela | 708 Raphaela is a minor planet orbiting the Sun.
Observations performed at the Palmer Divide Observatory in Colorado Springs, Colorado during 2007 produced a light curve with a period of 20.918 hours with a brightness amplitude of 0.45 ± 0.02 in magnitude.
References
External links
Lightcurve plot of 708 Raphaela, Palmer Divide Observatory, B. D. Warner (2007)
Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000708
Discoveries by Joseph Helffrich
Named minor planets
000708
19110203 |
3033293 | https://en.wikipedia.org/wiki/709%20Fringilla | 709 Fringilla | 709 Fringilla is a minor planet orbiting the Sun.
References
External links
000709
Discoveries by Joseph Helffrich
Named minor planets
000709
19110203 |
3033303 | https://en.wikipedia.org/wiki/710%20Gertrud | 710 Gertrud | 710 Gertrud is a Themistian asteroid, which means it is a member of the Themis family of asteroids. It was discovered by Austrian astronomer Johann Palisa on 28 February 1911 from Vienna.
The light curve of 710 Gertrud shows a periodicity of , during which time the brightness of the object varies by in magnitude.
References
External links
Themis asteroids
Gertrud
19110228
Gertrud |
3033304 | https://en.wikipedia.org/wiki/711%20Marmulla | 711 Marmulla | 711 Marmulla is an asteroid belonging to the Flora family in the Main Belt. It was discovered 1 March 1911 by Austrian astronomer Johann Palisa. The asteroid name may be derived from the Old High German word 'marmul', which means 'marble'. This asteroid is orbiting from the Sun with a period of and an eccentricity (ovalness) of 0.195. The orbital plane of 711 Marmulla is inclined at an angle of 6.1° to the plane of the ecliptic.
Photometric observations of this asteroid in 2019 resulted in a light curve showing a rotation period of with a brightness variation of 0.06 in magnitude. This result is consistent with a similar study earlier in the year. A. Kryszczynska and associates had found a slightly longer rotation period of 2.88 hours in 2012. The low amplitude of the variation suggests a nearly spherical shape. The spectrum of 711 Marmulla most closely matches an A-type asteroid.
References
External links
Flora asteroids
19110301
Marmulla
Marmulla |
3033305 | https://en.wikipedia.org/wiki/712%20Boliviana | 712 Boliviana | 712 Boliviana is a C-type asteroid from the asteroid belt, with the type indicating the surface has a low albedo with high carbonaceous content. The spectra of the asteroid displays evidence of aqueous alteration. It is named after Simón Bolívar.
Boliviana was observed by Arecibo radar 2005 Oct 29-Nov 1.
References
External links
Background asteroids
Boliviana
Boliviana
C-type asteroids (Tholen)
X-type asteroids (SMASS)
19110319 |
3033306 | https://en.wikipedia.org/wiki/713%20Luscinia | 713 Luscinia | 713 Luscinia is a large, main belt asteroid orbiting the Sun. It is a member of the Cybele asteroid group.
References
External links
Lightcurve plot of (713) Luscinia, Antelope Hills Observatory
000713
Discoveries by Joseph Helffrich
Named minor planets
000713
000713
19110418 |
3033309 | https://en.wikipedia.org/wiki/714%20Ulula | 714 Ulula | 714 Ulula is a main belt asteroid. It is orbiting the Sun near the 3:1 Kirkwood Gap with a period of 4.04 years and an eccentricity of 0.057. It was discovered by German astronomer J. Helffrich on 18 May 1911 from the Heidelberg Observatory and was named after an order of owls. The asteroid has a mean radius of 20 km and is spinning with a rotation period of seven hours. Its pole of rotation lies just 4–14° away from the plane of the ecliptic. The surface spectrum shows a pyroxene chemistry and is consistent with mesosiderites/HED meteorites.
References
External links
Maria asteroids
Ulula
Ulula
S-type asteroids (Tholen)
19110518 |
3033312 | https://en.wikipedia.org/wiki/715%20Transvaalia | 715 Transvaalia | 715 Transvaalia is a minor planet orbiting the Sun.
The object 1911 LX discovered April 22, 1911, by H. E. Wood was named 715 Transvaalia. It was named after Transvaal, former province of South Africa. On April 23, 1920, the object 1920 GZ was discovered and named 933 Susi. In 1928 it was realized that these were one and the same object. The name Transvaalia was kept, and the name and number 933 Susi was reused for the object 1927 CH discovered February 10, 1927, by Karl Reinmuth. 715 Transvaalia has been observed to occult two stars, both events in 2022.
References
External links
Background asteroids
Transvaalia
Transvaalia
X-type asteroids (SMASS)
19110422 |
3033314 | https://en.wikipedia.org/wiki/716%20Berkeley | 716 Berkeley | 716 Berkeley (prov. designation: or ) is a background asteroid from the central regions of the asteroid belt. It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 30 July 1911. The stony S-type asteroid has a rotation period of 15.6 hours and measures approximately in diameter. It was named after the city of Berkeley, California, where the discoverer's colleague Armin Otto Leuschner (1868–1953) was the director of the local observatory.
Orbit and classification
Berkeley is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the central asteroid belt at a distance of 2.6–3.1 AU once every 4 years and 9 months (1,722 days; semi-major axis of 2.81 AU). Its orbit has an eccentricity of 0.09 and an inclination of 8° with respect to the ecliptic. The body's observation arc begins with its first observation at Heidelberg on 16 July 1906, five years prior to its official discovery observation by Johann Palisa at Vienna.
Naming
According to Alexander Schnell, this minor planet was named by the discoverer after the U.S. city of Berkeley in California, where American astronomer and colleague Armin Otto Leuschner (1868–1953) was a long-time director at the Leuschner Observatory (then called Students' Observatory). Known for his books Celestial Mechanics and The Minor Planets of the Hecuba Group, Leuschner worked on the orbit determination of 719 Albert, which was originally discovered by Palisa in 1911 but remained a lost asteroid until 2000. The naming citation was not mentioned in The Names of the Minor Planets by Paul Herget in 1955. Palisa also named asteroid 718 Erida after Leuschner's daughter. The lunar crater Leuschner and asteroid 1361 Leuschneria, discovered by Eugène Delporte in 1935, were later named directly after the American astronomer.
Physical characteristics
In both the Tholen and SMASS classification, Berkeley is a common, stony S-type asteroid. It is also an S-type in the Bus–DeMeo classification, while in the Tholen- and SMASS-like taxonomic variants of the Small Solar System Objects Spectroscopic Survey (S3OS2), this asteroid is a K-type and Sq-subtype which transitions to the uncommon Q-type, respectively.
Rotation period
In May 2009, a rotational lightcurve of Berkeley was obtained from photometric observations by American amateur astronomer Joe Garlitz at his Elgin Observatory in Oregon. Lightcurve analysis gave a rotation period of hours with a brightness variation of magnitude (). Lower rated lightcurves obtained by Claes-Ingvar Lagerkvist in 1977, and by David Romeuf in 2018, gave a divergent period of larger than and with an amplitude of larger than and magnitude, respectively ().
Diameter and albedo
According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), the Infrared Astronomical Satellite IRAS, and the Japanese Akari satellite, Berkeley measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively.
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.2027 and a diameter of 21.38 kilometers based on an absolute magnitude of 10.7. Alternative mean-diameters published by the WISE team include () and () with a corresponding albedo of () and ().
Notes
References
External links
Lightcurve Database Query (LCDB), at www.minorplanet.info
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000716
Discoveries by Johann Palisa
Named minor planets
000716
000716
19110730 |
3033316 | https://en.wikipedia.org/wiki/717%20Wisibada | 717 Wisibada | 717 Wisibada (prov. designation: or ) is a dark background asteroid from the outer regions of the asteroid belt. It was discovered on 26 August 1911, by German astronomer Franz Kaiser at the Heidelberg-Königstuhl State Observatory in southwest Germany. The D-type asteroid measures approximately in diameter with no rotation period yet determined. It was named after the discoverer's birthplace, the city of Wiesbaden in Hesse, Germany.
Orbit and classification
Wisibada is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the outer asteroid belt at a distance of 2.3–4.0 AU once every 5 years and 7 months (2,031 days; semi-major axis of 3.14 AU). Its orbit has an eccentricity of 0.26 and an inclination of 2° with respect to the ecliptic. The body's observation arc begins at Vienna Observatory on 22 August 1922, or one year after its official discovery observation at the Heidelberg Observatory.
Naming
This minor planet was named by the discoverer Franz Kaiser after his birthplace, the city of Wiesbaden in Hesse, Germany. Kaiser also named asteroid 765 Mattiaca after Wiesbaden using the city's Latin name, Aquae Mattiacorum, which means "Waters of the Mattiaci". The was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ().
Physical characteristics
In the Tholen classification, Wisibadas spectral type is closest to a dark D-type asteroid, and somewhat similar to an X-type asteroid, though with a noisy spectrum (DX:).
Rotation period
As of 2020, no rotational lightcurve of Wisibada has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.
Diameter and albedo
According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), the Infrared Astronomical Satellite IRAS, and the Japanese Akari satellite, Wisibada measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0796 and a diameter of 31.12 kilometers based on an absolute magnitude of 10.9. Alternative mean-diameters published by the WISE team include () and () with a corresponding albedo of () and ().
References
External links
Lightcurve Database Query (LCDB), at www.minorplanet.info
Dictionary of Minor Planet Names, Google books
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000717
Discoveries by Franz Kaiser
Named minor planets
000717
19110826 |
3033317 | https://en.wikipedia.org/wiki/718%20Erida | 718 Erida | 718 Erida is a minor planet orbiting the Sun. It was discovered at Vienna on September 29, 1911, by Austrian astronomer Johann Palisa, and was named for Erida Leuschner, daughter of astronomer Armin Otto Leuschner. It is orbiting at a distance of with a period of and an eccentricity of 0.20. The orbital plane of this asteroid is inclined by an angle of 6.9° to the plane of the ecliptic.
Photometric observations made during 2009 were used to produce a light curve for this asteroid that showed a rotation period of with a brightness variation of 0.37 in magnitude. It spans a girth of approximately 72 km.
References
External links
Background asteroids
Erida
Erida
X-type asteroids (SMASS)
19110929 |
3033319 | https://en.wikipedia.org/wiki/720%20Bohlinia | 720 Bohlinia | 720 Bohlinia is a minor planet orbiting the Sun that was discovered by Franz Kaiser, a German astronomer in 1911. It is named for Swedish astronomer Karl Petrus Theodor Bohlin, to mark his 65th birthday. He had worked on the orbits of asteroids.
It is one of the Koronis family of asteroids. A group of astronomers, including Lucy d’Escoffier Crespo da Silva and Richard P. Binzel, used observations made between 1998 through 2000 to determine the spin-vector alignment of these asteroids. The collaborative work resulted in the creation of 61 new individual rotation lightcurves to augment previous published observations.
Binzel and Schelte Bus further added to the knowledge about this asteroid in a lightwave survey published in 2003. This project was known as Small Main-belt Asteroid Spectroscopic Survey, Phase II or SMASSII, which built on a previous survey of the main-belt asteroids. The visible-wavelength (0.435-0.925 micrometre) spectra data was gathered between August 1993 and March 1999.
References
External links
Koronis asteroids
Bohlinia
Bohlinia
S-type asteroids (Tholen)
Sq-type asteroids (SMASS)
19111018 |
3033330 | https://en.wikipedia.org/wiki/721%20Tabora | 721 Tabora | 721 Tabora is a minor planet orbiting the Sun. Tabora was named at a conference in Hamburg, Germany in 1913. The name was chosen because the conference was held aboard the passenger cargo liner of the Deutsche Ost-Afrika Linie. The asteroid is orbiting at a distance of from the Sun with a period of and an eccentricity (ovalness) of 0.12. The orbital plane for is inclined at an angle of 8.3° to the plane of the ecliptic It is a member of the Cybele group in the outer belt, located close to the 7:4 and 16:9 orbital resonances with Jupiter.
Photometric observations of this asteroid made during 2005 were used to produce a light curve showing a rotation period of with a brightness variation of 0.28 in magnitude. This is a low albedo D-type asteroid showing the characteristic featureless, reddish spectrum of that taxonomic class. It spans a girth of approximately 76 km.
References
External links
Cybele asteroids
19111018
D-type asteroids (Tholen)
Tabora
Tabora |
3033331 | https://en.wikipedia.org/wiki/722%20Frieda | 722 Frieda | 722 Frieda (prov. designation: or ) is a bright background asteroid and slow rotator from the inner regions of the asteroid belt. It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 18 October 1911. The stony S-type asteroid has a notably long rotation period of 131.1 hours and measures approximately in diameter. It was named after Frieda Hillebrand, daughter of Austrian astronomer (1861–1939), and grand-daughter of Edmund Weiss (1837–1917) who had been the director of the discovering observatory.
Orbit and classification
Located in the region of the Flora family (), the largest family of stony asteroids, Frieda is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the inner asteroid belt at a distance of 1.9–2.5 AU once every 3 years and 2 months (1,169 days; semi-major axis of 2.17 AU). Its orbit has an eccentricity of 0.14 and an inclination of 6° with respect to the ecliptic. The body's observation arc begins at Heidelberg Observatory on 19 January 1912, or three months after its official discovery observation by Johann Palisa at Vienna Observatory.
Naming
According to Alexander Schnell, this minor planet was named after Frieda Hillebrand, daughter of Austrian astronomer and professor at Graz University, (1861–1939). Frieda is also the grand-daughter of astronomer Edmund Weiss (1837–1917), who was director of the Vienna Observatory (1877–1908) where this asteroid was discovered. The was not mentioned in The Names of the Minor Planets by Paul Herget in 1955. Palisa also named asteroid 794 Irenaea after Frieda's mother, Irene Hillebrand (née Weiss).
Physical characteristics
In the SMASS-I classification by Xu (1995), Frieda is a common, stony S-type asteroid.
Rotation period
In April 2019, a rotational lightcurve of Frieda was obtained for the first time from 12 nights of photometric observations by American amateur astronomer Tom Polakis at the Command Module Observatory in Arizona. Lightcurve analysis gave a rotation period of hours with a high brightness variation of magnitude ().
Diameter and albedo
According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE) and the Japanese Akari satellite, Frieda measures () and () kilometers in diameter and its surface has an albedo of () and (), respectively.
The Collaborative Asteroid Lightcurve Link adopts Petr Pravec's revised WISE-data, with an albedo of 0.2721 and a diameter of 8.794 kilometers based on an absolute magnitude of 12.31. Alternative mean-diameters published by the WISE team include (), () and () with a corresponding albedo of (), () and ().
References
External links
Lightcurve Database Query (LCDB), at www.minorplanet.info
Dictionary of Minor Planet Names, Google books
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
000722
Discoveries by Johann Palisa
Named minor planets
19111018 |