68 Leto
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| Discovery | |
|---|---|
| Discovered by | Karl Theodor Robert Luther |
| Discovery date | April 29, 1861 |
| Designations | |
| Named after | Leto |
| Alternative names | |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 493.518 Gm (3.299 AU) |
| Perihelion | 339.110 Gm (2.267 AU) |
| Semi-major axis | 416.314 Gm (2.783 AU) |
| Eccentricity | 0.185 |
| Orbital period | 1695.670 d (4.64 a) |
| Average orbital speed | 17.70 km/s |
| Mean anomaly | 24.606° |
| Inclination | 7.972° |
| Longitude of ascending node | 44.183° |
| Argument of perihelion | 305.392° |
| Physical characteristics | |
| Dimensions | 124.96 ± 6.42[1] km |
| Mass | (3.28 ± 1.90) × 1018[1] kg |
| Mean density | 3.21 ± 1.92[1] g/cm3 |
| Equatorial surface gravity | 0.0343 m/s² |
| Escape velocity | 0.0648 km/s |
| Albedo | 0.228 (geometric)[2] |
| Temperature | ~167 K |
| Spectral type | S |
| Apparent magnitude | 9.56 (brightest) |
| Absolute magnitude (H) | 6.78 |
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68 Leto (/ˈliːtoʊ/ LEE-toh; Greek: Λητώ) is a large main belt asteroid. Its spectral type is S. It was discovered by Robert Luther on April 29, 1861. The asteroid is named after Leto, the mother of Apollo and Artemis in Greek mythology.
References
- ↑ 1.0 1.1 1.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ↑ Asteroid Data Sets
External links
- Orbital simulation from JPL (Java)
- Ephemeris
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