| content | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Discovery
|
|
|---|---|
| Discovered by | James Craig Watson |
| Discovery date | August 24, 1867 |
|
Designations
|
|
| Alternate name | |
| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 470.348 Gm (3.144 AU) |
| Perihelion | 353.703 Gm (2.364 AU) |
| Semi-major axis | 412.026 Gm (2.754 AU) |
| Eccentricity | 0.142 |
| Orbital period | 1669.541 d (4.57 a) |
| Average orbital speed | 17.86 km/s |
| Mean anomaly | 226.139° |
| Inclination | 8.557° |
| Longitude of ascending node | 4.148° |
| Argument of perihelion | 275.747° |
|
Physical characteristics
|
|
| Dimensions | 141.0 km |
| Mass | 2.9×1018 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0394 m/s² |
| Escape velocity | 0.0745 km/s |
| Rotation period | ? d |
| Albedo | 0.088 1 |
| Temperature | ~168 K |
| Spectral type | C |
| Absolute magnitude (H) | 7.7 |
93 Minerva (IPA: /mɨˈnɝːvə/ mi-NER-və) is a large main belt asteroid. It is a C-type asteroid, meaning that it has a dark surface and possibly 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.2
References
|
|||||
_mathilde.jpg){kind=small} |
This article about a C-type asteroid native to the Main Belt is a stub. You can help Wikipedia by expanding it. |
