95 Arethusa
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| Discovery | |
|---|---|
| Discovered by: | Karl Theodor Robert Luther |
| Discovery date: | November 23, 1867 |
| Alternative names: | |
| Minor planet category: | Main belt |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion distance: | 527.303 Gm (3.525 AU) |
| Perihelion distance: | 390.547 Gm (2.611 AU) |
| Semi-major axis: | 458.925 Gm (3.068 AU) |
| Eccentricity: | 0.149 |
| Orbital period: | 1962.561 d (5.37 a) |
| Avg. orbital speed: | 16.91 km/s |
| Mean anomaly: | 326.964° |
| Inclination: | 12.998° |
| Longitude of ascending node: | 243.148° |
| Argument of perihelion: | 155.023° |
| Physical characteristics | |
| Dimensions: | 136.0 km |
| Mass: | 2.6×1018 kg |
| Mean density: | ? g/cm³ |
| Equatorial surface gravity: | 0.0380 m/s² |
| Escape velocity: | 0.0719 km/s |
| Rotation period: | ? d |
| Albedo: | 0.070 [1] |
| Temperature: | ~159 K |
| Spectral type: | C |
| Absolute magnitude: | 7.84 |
95 Arethusa (air'-a-thew'-za) is a large main belt asteroid. Its coloring is dark, composition carbonaceous and primitive. It was discovered by Robert Luther on November 23, 1867 and named after one of the various Arethusas in Greek mythology. Arethusa has been observed occulting a star three times: first on February 2, 1998 and twice in January, 2003.
[edit] References
| Minor planets | ||
|---|---|---|
| Previous minor planet | 95 Arethusa | 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.
