| Discovery | |
|---|---|
| Discovered by: | Johann Palisa |
| Discovery date: | February 6, 1880 |
| Orbital characteristics | |
| Epoch 30 January, 2005 (JD 2453400.5) | |
| Aphelion | 518.201 Gm (3.464 AU) |
| Perihelion: | 413.154 Gm (2.762 AU) |
| Semi-major axis: | 465.677 Gm (3.113 AU) |
| Eccentricity: | 0.113 |
| Orbital period: | 2005.994 d (5.49 a) |
| Avg. orbital speed: | 16.88 km/s |
| Mean anomaly: | 356.798° |
| Inclination: | 4.265° |
| Longitude of ascending node: | 313.697° |
| Argument of perihelion: | 99.624° |
| Physical characteristics | |
| Dimensions: | 136.0 km |
| Mass: | unknown |
| Mean density: | unknown |
| Equatorial surface gravity: | unknown |
| Escape velocity: | unknown |
| Rotation period: | 10.12 h |
| Albedo: | 0.047 |
| Temperature: | unknown |
| Spectral type: | DCX: |
| Absolute magnitude: | 8.28 |
212 Medea is a very large Main belt asteroid. It is rather dark in colour. It was discovered by Johann Palisa on February 6, 1880 in Pola and was named after the witch Medea in Greek mythology.
References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
| Minor planets (see full list) |
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|---|---|---|
| Previous minor planet | 212 Medea | 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. |
