69 Hesperia
From Wikipedia, the free encyclopedia
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Discovery
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| Discovered by | G. Schiaparelli |
| Discovery date | April 26, 1869 |
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Designations
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| Minor planet category |
Main belt |
| Epoch (absent) | |
| Aphelion | 519.3 Gm (3.471 AU) |
| Perihelion | 372.3 Gm (2.489 AU) |
| Semi-major axis | 445.8 Gm (2.980 AU) |
| Eccentricity | 0.165 |
| Orbital period | 1879 d (5.14 a) |
| Inclination | 8.59° |
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Physical characteristics
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| Dimensions | 138.13 km |
| Rotation period | 5.655 h |
| Albedo | 0.140 |
| Spectral type | M |
| Absolute magnitude | 7.05 |
69 Hesperia (hes-peer'-ee-ə, IPA: /hɛsˈpɪriə/) is a large, M-type main belt asteroid.
Hesperia was discovered by the famous Italian astronomer Giovanni Schiaparelli on April 26, 1861. It was his only asteroid discovery. It is named after one of the Hesperides in Greek mythology.
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