| Discovery | |
|---|---|
| Discovered by: | Hermann Mayer Salomon Goldschmidt |
| Discovery date: | September 19, 1857 |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 500.093 Gm (3.343 AU) |
| Perihelion: | 430.463 Gm (2.877 AU) |
| Semi-major axis: | 465.278 Gm (3.110 AU) |
| Eccentricity: | 0.075 |
| Orbital period: | 2003.453 d (5.49 a) |
| Avg. orbital speed: | 16.87 km/s |
| Mean anomaly: | 336.191° |
| Inclination: | 6.554° |
| Longitude of ascending node: | 183.754° |
| Argument of perihelion: | 257.583° |
| Physical characteristics | |
| Dimensions: | 221.8 km |
| Mass: | 1.1×1019 kg |
| Mean density: | ? g/cm³ |
| Equatorial surface gravity: | 0.0620 m/s² |
| Escape velocity: | 0.1173 km/s |
| Rotation period: | ? d |
| Albedo: | 0.062 [1] |
| Temperature: | ~158 K |
| Spectral type: | C |
| Absolute magnitude: | 6.90 |
48 Doris (IPA: /ˈdɔrɨs/, Greek Δωρις) is one of the largest main belt asteroids. Doris was discovered by H. Goldschmidt on September 19, 1857 and named after Doris, an Oceanid in Greek mythology.
References
| Minor planets (see full list) |
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|---|---|---|
| Previous minor planet | 48 Doris | Next minor planet |
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| Vulcanoids · Near-Earth asteroids · Main belt · Jupiter Trojans · Centaurs · Damocloids · Neptune Trojans · Comets · Trans-Neptunians (Kuiper belt • Scattered disc objects • Oort cloud) |
| For other objects and regions, see Asteroid groups and families, Binary asteroids, Asteroid moons, meteoroids and the Solar System. For a complete listing, see List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names. |
