76 Freia
From Infogalactic: the planetary knowledge core
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A three-dimensional model of 76 Freia based on its light curve.
|
|
| Discovery | |
|---|---|
| Discovered by | Heinrich d'Arrest |
| Discovery date | October 21, 1862 |
| Designations | |
|
Named after
|
Freyja |
| Outer main belt[1] (Cybele) | |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 594.715 Gm (3.975 AU) |
| Perihelion | 427.898 Gm (2.860 AU) |
| 511.306 Gm (3.418 AU) | |
| Eccentricity | 0.163 |
| 2307.979 d (6.32 a) | |
|
Average orbital speed
|
16.00 km/s |
| 299.268° | |
| Inclination | 2.116° |
| 204.535° | |
| 254.070° | |
| Physical characteristics | |
| Dimensions | 183.7±4 km[1] |
| Mass | (1.97 ± 4.20) × 1018[2] kg |
|
Mean density
|
0.79 ± 1.69[2] g/cm3 |
| 0.0513 m/s² | |
| 0.0971 km/s | |
| Albedo | 0.036 [3] |
| Temperature | ~151 K |
|
Spectral type
|
CP |
| 7.90 | |
76 Freia (/ˈfraɪ.ə/ FRY-ə) is a very large main-belt asteroid. It orbits in the outer part of the asteroid belt and is classified as a Cybele asteroid. Its composition is very primitive and it is extremely dark in color. Freia was discovered by the astronomer Heinrich d'Arrest on October 21, 1862, in Copenhagen, Denmark. It was his first and only asteroid discovery. It is named after the goddess Freyja in Norse mythology.
References
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