495 Eulalia
Main-belt asteroid
From Wikipedia, the free encyclopedia
495 Eulalia is a minor planet, specifically an asteroid orbiting in the asteroid belt. Eulalia is very near the 3:1 Jupiter orbital resonance.[3] It is a member of the Eulalia family of asteroids, which is part of the Nysa-Polana complex of asteroids.
Sun · Earth · 162173 Ryugu · 142 Polana · 495 Eulalia
Discoverydate25 October 1902
Pronunciation/juːˈleɪliə/
_Eulalia.png) Modelled shape of Eulalia from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg Observatory |
| Discovery date | 25 October 1902 |
| Designations | |
| Pronunciation | /juːˈleɪliə/ |
Named after | the discoverer's wife's grandmother[1] |
| 1902 KG | |
| Orbital characteristics[2] | |
| 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) |
| 2.4873 AU (372.09 Gm) | |
| Eccentricity | 0.12977 |
| 3.92 yr (1432.8 d) | |
| 5.5120° | |
| 0° 15m 4.536s / day | |
| Inclination | 2.2795° |
| 186.478° | |
| 206.971° | |
| Physical characteristics | |
| 19.425±0.7 km | |
| 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.[5]
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