25 Phocaea
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Discovery
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| Discovered by | J. Chacornac |
| Discovery date | April 6, 1853 |
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Designations
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| Alternative names | 1956 GC |
| Minor planet category |
Main belt (Phocaea family) |
| Epoch June 14, 2006 (JD 2453900.5) | |
| Aphelion | 450.716 Gm (3.013 AU) |
| Perihelion | 267.314 Gm (1.787 AU) |
| Semi-major axis | 359.015 Gm (2.400 AU) |
| Eccentricity | 0.255 |
| Orbital period | 1357.936 d (3.72 a) |
| Average orbital speed | 18.91 km/s |
| Mean anomaly | 6.932° |
| Inclination | 21.584° |
| Longitude of ascending node | 214.258° |
| Argument of perihelion | 90.154° |
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Physical characteristics
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| Dimensions | 75.1 km |
| Mass | 4.4×1017? kg |
| Mean density | 2.0? g/cm³ |
| Equatorial surface gravity | 0.0210? m/s² |
| Escape velocity | 0.0397? km/s |
| Rotation period | 0.4144 d (9.945 h) [1] |
| Albedo | 0.231 [2] |
| Temperature | ~173 K |
| Spectral type | S |
| Absolute magnitude | 7.83 |
25 Phocaea (pronounced /foʊˈsiːə/, Greek: Φώκαια) is a Main belt asteroid.
It was discovered by J. Chacornac on April 6, 1853. It was his first asteroid discovery. It is named after Phocaea, the ancient Greek name for Foça in Turkey.
[edit] References
- ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_DERIVED_LIGHTCURVE_V8_0/data/lc.tab
- ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_ALBEDOS_V1_1/data/albedos.tab
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This article about an S-type asteroid native to the Main Belt is a stub. You can help Wikipedia by expanding it. |
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