804 Hispania
From Wikipedia, the free encyclopedia
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Discovery
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| Discovered by | J. Comas Solá |
| Discovery date | March 20, 1915 |
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Designations
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| Named after | Spain |
| Alternate name(s) | 1915 WT |
| Minor planet category |
Main belt |
| Epoch 18 August 2005 (JD 2453600.5) | |
| Aphelion | 484.2 Gm (3.237 AU) |
| Perihelion | 364.6 Gm (2.437 AU) |
| Semi-major axis | 424.4 Gm (2.837 AU) |
| Eccentricity | 0.141 |
| Orbital period | 1745 d (4.778 a) |
| Average orbital speed | 17.60 km/s |
| Mean anomaly | 175.732° |
| Inclination | 15.380° |
| Longitude of ascending node | 347.889° |
| Argument of perihelion | 342.525° |
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Physical characteristics
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| Dimensions | 157.30km |
| Mass | 9.95×1018 |
| Mean density | 4.90g/cm³ |
| Equatorial surface gravity | ~0.107m/s2 |
| Escape velocity | ~129.9m/s |
| Rotation period | 7.405hr [1] |
| Albedo | 0.0522 |
| Temperature | ~167.4K |
| Spectral type | P |
| Absolute magnitude (H) | 7.84 |
804 Hispania is a minor planet orbiting the Sun. It was discovered from Barcelona (Spain) on 20 March 1915 by Josep Comas Solá (1868–1937), the first asteroid to be discovered by a Spaniard.
[edit] External links
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