93 Minerva
Encyclopedia : 9 : 93 : 93M : 93 Minerva
| Orbital characteristics [1] | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.755 AU |
| Perihelion distance | 2.367 AU |
| Aphelion distance | 3.144 AU |
| Orbital period | 4.57 years |
| Inclination | 8.56° |
| Eccentricity | 0.141 |
| Physical characteristics [1] | |
| Diameter | ~150 km |
| Rotation period [3] | 5.982 hours |
| Spectral class | C? |
| Abs. magnitude | 7.70 |
| Albedo [4] | 0.088 |
| History [2] | |
| Discoverer | J. C. Watson, 1867 |
93 Minerva (mi-nur'-va) is a large main belt asteroid. It is a C-type asteroid, meaning that it has a dark surface and possibily a primitive carbonaceous composition .
It was discovered by J. C. Watson on August 24, 1867 and named after Minerva, the Roman equivalent of Athena, goddess of wisdom.
An occultation of a star by Minerva was observed in France, Spain and the United States on November 22, 1982. An occultation diameter of ~170 km was measured from the observations. Since then two more occultations have been observed, which give an estimated mean diameter of ~150 km for diameter. [link]
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