76 Freia
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| Discovery | |
|---|---|
| Discovered by: | Heinrich d'Arrest |
| Discovery date: | October 21, 1862 |
| Alternative names: | |
| Minor planet category: | Main belt (Cybele) |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion distance: | 594.715 Gm (3.975 AU) |
| Perihelion distance: | 427.898 Gm (2.860 AU) |
| Semi-major axis: | 511.306 Gm (3.418 AU) |
| Eccentricity: | 0.163 |
| Orbital period: | 2307.979 d (6.32 a) |
| Avg. orbital speed: | 16.00 km/s |
| Mean anomaly: | 299.268° |
| Inclination: | 2.116° |
| Longitude of ascending node: | 204.535° |
| Argument of perihelion: | 254.070° |
| Physical characteristics | |
| Dimensions: | 183.7 km |
| Mass: | 6.5×1018 kg |
| Mean density: | ? g/cm³ |
| Equatorial surface gravity: | 0.0513 m/s² |
| Escape velocity: | 0.0971 km/s |
| Rotation period: | ? d |
| Albedo: | 0.036 [1] |
| Temperature: | ~151 K |
| Spectral type: | CP |
| Absolute magnitude: | 7.90 |
76 Freia (frye'-a) 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.
[edit] References
| Minor planets | ||
|---|---|---|
| Previous minor planet | 76 Freia | Next minor planet |
| List of asteroids | ||
Vulcanoids · Near-Earth asteroids · Main belt · Jupiter Trojans · Centaurs · Damocloids · Comets · Trans-Neptunians (Kuiper belt • Scattered disc • Oort cloud)
For other objects and regions, see Asteroid groups and families, Binary asteroids, Asteroid moons and the Solar System.
For a complete listing, see List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.
