495 Eulalia
Eulalia (minor planet designation: 495 Eulalia) is a minor planet, specifically an asteroid orbiting in the asteroid belt. Eulalia is very near the 3:1 Jupiter orbital resonance.
Modelled shape of Eulalia from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg Observatory |
| Discovery date | 25 October 1902 |
| Designations | |
MPC designation | (495) Eulalia |
| Pronunciation | /juːˈleɪliə/ |
Named after | the discoverer's wife's grandmother |
Alternative designations | 1902 KG |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 113.10 yr (41309 d) |
| Aphelion | 2.8101 AU (420.38 Gm) |
| Perihelion | 2.1645 AU (323.80 Gm) |
Semi-major axis | 2.4873 AU (372.09 Gm) |
| Eccentricity | 0.12977 |
Orbital period (sidereal) | 3.92 yr (1432.8 d) |
Mean anomaly | 5.5120° |
Mean motion | 0° 15m 4.536s / day |
| Inclination | 2.2795° |
Longitude of ascending node | 186.478° |
| 206.971° | |
| Physical characteristics | |
Mean radius | 19.425±0.7 km |
Synodic rotation period | 28.967 h (1.2070 d) |
| 0.0571±0.004 | |
| 10.78 | |
It is possible that the disruption of Eulalia's parent body resulted in a mass bombardment of the Earth and Moon 800 million years ago, forming the Copernicus crater on the Moon and involving about 50 times the amount of material of the Chicxulub impact on Earth at the beginning of the Cryogenian geological period.
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