580 Selene
| Discovery | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg |
| Discovery date | 17 December 1905 |
| Designations | |
| 1905 SE | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.29 yr (40283 d) |
| Aphelion | 3.4971 AU (523.16 Gm) |
| Perihelion | 2.9628 AU (443.23 Gm) |
| 3.2300 AU (483.20 Gm) | |
| Eccentricity | 0.082713 |
| 5.81 yr (2120.3 d) | |
| 45.310° | |
| 0° 10m 11.244s / day | |
| Inclination | 3.6614° |
| 99.154° | |
| 334.542° | |
| Earth MOID | 1.97666 AU (295.704 Gm) |
| Jupiter MOID | 1.72509 AU (258.070 Gm) |
| Jupiter Tisserand parameter | 3.178 |
| Physical characteristics | |
Mean radius | 22.895±1.6 km |
| 9.47 h (0.395 d) | |
| 0.1218±0.019 | |
| 10.3 | |
|
| |
580 Selene is a minor planet orbiting the Sun. The name Selene is that of an ancient Greek goddess of the Moon.
This body orbits the Sun nearly midway between the orbits of Mars and Jupiter. The orbital eccentricity is slightly lower than that of Mars. Based on its light curve, Selene has an estimated rotation period of 0.3947±0.0004 days, or just under 9.5 hours.[2] During each rotation, the apparent magnitude varies by 0.27. The approximate diameter of this asteroid is 46 km.[3] (Some sources list a diameter of up to 56 km.) The albedo is about 7%, comparable to that of the Earth's Moon.
References
- ↑ "580 Selene (1905 SE)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
- ↑ Antonini, Pierre (2005-05-16). "Courbes de rotation d'astéroïdes et de comètes" (in French). Observatoire de Genève. Archived from the original on 8 July 2006. Retrieved 2006-06-12.
- ↑ "Occultation by (580) Selene". RASNZ Occultation Section. 2005-01-18. Retrieved 2006-06-12.
External links
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