_Hippodamia.png) Lightcurve modelled shape ofHippodamia | |
| Discovery[1] | |
|---|---|
| Discovered by | M. Wolf andA. Kopff |
| Discovery site | Heidelberg Observatory |
| Discovery date | 5 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 arc | 113.83 yr (41575 d) |
| Aphelion | 3.9570 AU (591.96 Gm) |
| Perihelion | 2.8093 AU (420.27 Gm) |
| 3.3832 AU (506.12 Gm) | |
| Eccentricity | 0.16962 |
| 6.22yr (2272.9d) | |
| 147.27° | |
| 0° 9m 30.204s / day | |
| Inclination | 26.080° |
| 63.487° | |
| 54.267° | |
| Earth MOID | 1.89564 AU (283.584 Gm) |
| Jupiter MOID | 1.62381 AU (242.919 Gm) |
| TJupiter | 2.966 |
| Physical characteristics | |
| Dimensions | 45.90±1.8 km[4] 45.34±0.68 km[5] 44.309±0.609 km[6] |
| 22.95±0.9km | |
| 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] | |
692 Hippodamia, provisional designation 1901 HD, is a stonyasteroid from the outer region of theasteroid belt, about 45 kilometers in diameter. It was discovered on 5 November 1901, by the German astronomersMax Wolf andAugust Kopff atHeidelberg Observatory in southern Germany.[12] Nine years later, the body was rediscovered by August Kopff at its apparition in 1910.[3]
TheS-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 istilted by 26 degrees to the plane of theecliptic and shows aneccentricity of 0.17.[1] Based on its orbital elements, it is a member of theCybele family. Named after the65 Cybele, the group consists of relatively low-eccentric asteroids, which have asemi-major axis around 3.4 AU, dwelling in-between theHungaria and the outermostHilda family of asteroids.[13]
According to the surveys carried out by the Infrared Astronomical Satellite,IRAS, the JapaneseAkari satellite, and theWide-field Infrared Survey Explorer with its subsequentNEOWISE mission, the body has analbedo between 0.18 and 0.20,[4][5][6] and several independent and concurring photometriclight-curve analysis rendered a well-definedrotation period of 8.99 hours.[7][8][9][10]
The minor planet was named afterHippodamia, a figure fromGreek mythology. It is believed the naming might have been influenced by the two letters of theprovisional designation "1901 HD", a common practice of the discoverers. Hippodamia is the daughter of KingOenomaus of Pisa and wife ofPelops. 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 tooccult three stars, between 2020 and 2022.
