238 Hypatia
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| Discovery A | |
|---|---|
| Discoverer | Viktor Knorre |
| Discovery date | July 1, 1884 |
| Alternate designations B |
1947 HA |
| Category | Main belt |
| Orbital elements C | |
|
|
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| Eccentricity (e) | 0.089 |
| Semi-major axis (a) | 434.763 Gm (2.906 AU) |
| Perihelion (q) | 396.128 Gm (2.648 AU) |
| Aphelion (Q) | 473.399 Gm (3.164 AU) |
| Orbital period (P) | 1809.596 d (4.95 a) |
| Mean orbital speed | 17.47 km/s |
| Inclination (i) | 12.408° |
| Longitude of the ascending node (Ω) |
184.2° |
| Argument of perihelion (ω) |
206.935° |
| Mean anomaly (M) | 59.101° |
| Physical characteristics D | |
| Dimensions | 149.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | 8.86 h |
| Spectral class | C |
| Absolute magnitude | 8.18 |
| Albedo (geometric) | 0.042 |
| Mean surface temperature |
unknown |
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.
[edit] References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
| Minor planets | ||
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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 | 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. |
