| Discovery | |
|---|---|
| Discovered by: | Viktor Knorre |
| Discovery date: | July 1, 1884 |
| Orbital characteristics | |
| Epoch 30 January, 2005 (JD 2453400.5) | |
| Aphelion | 473.399 Gm (3.164 AU) |
| Perihelion: | 396.128 Gm (2.648 AU) |
| Semi-major axis: | 434.763 Gm (2.906 AU) |
| Eccentricity: | 0.089 |
| Orbital period: | 1809.596 d (4.95 a) |
| Avg. orbital speed: | 17.47 km/s |
| Mean anomaly: | 59.101° |
| Inclination: | 12.408° |
| Longitude of ascending node: | 184.2° |
| Argument of perihelion: | 206.935° |
| Physical characteristics | |
| Dimensions: | 149.0 km |
| Mass: | unknown |
| Mean density: | unknown |
| Equatorial surface gravity: | unknown |
| Escape velocity: | unknown |
| Rotation period: | 8.86 h |
| Albedo: | 0.042 |
| Temperature: | unknown |
| Spectral type: | C |
| Absolute magnitude: | 8.18 |
238 Hypatia is a very large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of primitive carbonaceous material. Like many asteroids of this type, its surface is very dark in colour. It was discovered by Viktor Knorre on July 1, 1884 in Berlin. It was third of his total of four asteroid discoveries. The name was given in honour of philosopher Hypatia of Alexandria.
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 | 238 Hypatia | 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. |
