78 Diana
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| Orbital characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html) | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.619 AU |
| Perihelion distance | 2.075 AU |
| Aphelion distance | 3.164 AU |
| Orbital period | 4.24 years |
| Inclination | 8.69° |
| Eccentricity | 0.208 |
| Physical characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html) | |
| Diameter | 120.6 km |
| Rotation period 3 (http://charlie.psi.edu/pds/) | 7.225 hours |
| Spectral class | C |
| Abs. magnitude | 8.09 |
| Albedo 4 (http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html) | 0.071 |
| History 2 (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html) | |
| Discoverer | R. Luther, 1863 |
78 Diana (dye-an'-a) is a large and dark main belt asteroid. Its composition is carbonaceous and primitive.
It was discovered by Robert Luther on March 15, 1863 and named after Diana, Roman goddess of the hunt.
78 Diana occulted a star on September 4, 1980. A diameter of 116 km was measured, closely matching the value given by the IRAS satellite.
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