3391 Sinon
From Wikipedia, the free encyclopedia
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Discovery[1] and designation
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| Discovered by | Hiroki Kosai and Kiichiro Hurukawa |
| Discovery date | February 18, 1977 |
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Designations
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| Alternative names[1] | 1977 DD3 |
| Minor planet category |
Jupiter Trojan |
| Epoch February 04, 2008 (JD 2454500.5) | |
| Aphelion | 857.979 Gm (5.735 AU) |
| Perihelion | 726.892 Gm (4.859 AU) |
| Semi-major axis | 792.436 Gm (5.297 AU) |
| Eccentricity | 0.083 |
| Orbital period | 4453.039 d (12.19 a) |
| Average orbital speed | 12.92 km/s |
| Mean anomaly | 262.087° |
| Inclination | 14.877° |
| Longitude of ascending node | 341.143° |
| Dimensions | ? km |
| Mass | ?×10? kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | ? m/s² |
| Equatorial escape velocity | ? km/s |
| Sidereal rotation period |
? d |
| Axial tilt | ?° |
| Pole ecliptic latitude | ? |
| Pole ecliptic longitude | ? |
| Geometric albedo | 0.10 |
| Temperature | ~121 K |
| Spectral type | ? |
| Absolute magnitude | 10.3 |
3391 Sinon is a Jupiter trojan asteroid that orbits in the L4 Lagrangian point of the Sun-Jupiter system, in the "Greek Camp" of Trojan asteroids. It was named after the Greek hero Sinon, who was a warrior during the Trojan War. It was discovered by Hiroki Kosai and Kiichiro Hurukawa at the Kiso Observatory in Japan on February 18, 1977.
[edit] External links
- Discovery Circumstances: Numbered Minor Planets
- Orbital simulation from JPL (Java) / Ephemeris
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