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.
Lightcurve modelled shape of Hippodamia | |
| Discovery | |
|---|---|
| Discovered by | M. Wolf and A. Kopff |
| Discovery site | Heidelberg Observatory |
| Discovery date | 5 November 1901 |
| Designations | |
MPC designation | (692) Hippodamia |
| Pronunciation | /ˌhɪpədəˈmaɪə/ |
Named after | Hippodamia (Greek mythology) |
Alternative designations | 1901 HD · 1941 HK |
Minor planet category | main-belt (outer) · Cybele family |
| Orbital characteristics | |
| 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) |
Semi-major axis | 3.3832 AU (506.12 Gm) |
| Eccentricity | 0.16962 |
Orbital period (sidereal) | 6.22 yr (2272.9 d) |
Mean anomaly | 147.27° |
Mean motion | 0° 9m 30.204s / day |
| Inclination | 26.080° |
Longitude of ascending node | 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 45.34±0.68 km 44.309±0.609 km |
Mean radius | 22.95±0.9 km |
Synodic rotation period | 8.98 h (0.374 d) 8.998±0.007 h 8.99690±0.00005 h |
| 0.1785±0.015 0.185±0.006 0.1950±0.0194 | |
| B–V = 0.860 U–B = 0.435 Tholen = S S | |
| 9.18 | |
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