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.[12] Nine years later, the body was rediscovered by August Kopff at its apparition in 1910.[3]

692 Hippodamia
Lightcurve modelled shape of Hippodamia
Discovery [1]
Discovered byM. Wolf and A. Kopff
Discovery siteHeidelberg Observatory
Discovery date5 November 1901
Designations
(692) Hippodamia
Pronunciation/ˌhɪpədəˈmaɪə/[2]
Named after
Hippodamia
(Greek mythology)[3]
1901 HD · 1941 HK
main-belt (outer) · Cybele family
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc113.83 yr (41575 d)
Aphelion3.9570 AU (591.96 Gm)
Perihelion2.8093 AU (420.27 Gm)
3.3832 AU (506.12 Gm)
Eccentricity0.16962
6.22 yr (2272.9 d)
147.27°
0° 9m 30.204s / day
Inclination26.080°
63.487°
54.267°
Earth MOID1.89564 AU (283.584 Gm)
Jupiter MOID1.62381 AU (242.919 Gm)
TJupiter2.966
Physical characteristics
Dimensions45.90±1.8 km[4]
45.34±0.68 km[5]
44.309±0.609 km[6]
Mean radius
22.95±0.9 km
8.98 h (0.374 d)[1][7]
8.998±0.007 h[8]
8.99690±0.00005 h[9][10]
0.1785±0.015[1][4]
0.185±0.006[5]
0.1950±0.0194[6]
B–V = 0.860
U–B = 0.435
Tholen = S
S [11]
9.18[1]

    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.[1] 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.[13]

    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,[4][5][6] and several independent and concurring photometric light-curve analysis rendered a well-defined rotation period of 8.99 hours.[7][8][9][10]

    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.[3]

    692 Hippodamia has been observed to occult three stars, between 2020 and 2022.

    References
    1. "JPL Small-Body Database Browser: 692 Hippodamia (1901 HD)" (2015-09-03 last obs.). Jet Propulsion Laboratory. Retrieved 7 May 2016.
    2. Noah Webster (1884) A Practical Dictionary of the English Language
    3. Schmadel, Lutz D. (2003). "(692) Hippodamia". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 67. doi:10.1007/978-3-540-29925-7_693. ISBN 978-3-540-29925-7.
    4. Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
    5. Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
    6. Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. S2CID 118700974. Retrieved 15 December 2015.
    7. Zappala, V.; di Martino, M.; Cellino, A.; de Sanctis, G.; Farinella, P. (December 1989). "Rotational properties of outer belt asteroids". Icarus. 82 (2): 354–368.ResearchsupportedbyCNRandMPI. Bibcode:1989Icar...82..354Z. doi:10.1016/0019-1035(89)90043-2. ISSN 0019-1035. Retrieved 15 December 2015.
    8. Behrend, Raoul. "Asteroids and comets rotation curves – (692) Hippodamia". Geneva Observatory. Retrieved 15 December 2015.
    9. Hanuš, J.; Ďurech, J.; Brož, M.; Warner, B. D.; Pilcher, F.; et al. (June 2011). "A study of asteroid pole-latitude distribution based on an extended set of shape models derived by the lightcurve inversion method". Astronomy and Astrophysics. 530: 16. arXiv:1104.4114. Bibcode:2011A&A...530A.134H. doi:10.1051/0004-6361/201116738. Retrieved 15 December 2015.
    10. Hanus, J.; Durech, J.; Oszkiewicz, D. A.; Behrend, R.; Carry, B.; et al. (2016). "New and updated convex shape models of asteroids based on optical data from a large collaboration network". Astronomy & Astrophysics. 586: A108. arXiv:1510.07422. Bibcode:2016A&A...586A.108H. doi:10.1051/0004-6361/201527441. S2CID 119112278.
    11. "LCDB Data for (692) Hippodamia". Asteroid Lightcurve Database (LCDB). Retrieved 15 December 2015.
    12. "692 Hippodamia (1901 HD)". Minor Planet Center. Retrieved 15 December 2015.
    13. Linda T. Elkins-Tanton (2010). Asteroids, Meteorites, and Comets. Infobase. ISBN 9781438131863. Retrieved 15 December 2015.
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