30 Urania
From Wikipedia, the free encyclopedia
|
Discovery
|
|
|---|---|
| Discovered by | J. R. Hind |
| Discovery date | July 22, 1854 |
|
Designations
|
|
| Alternative names | 1948 JK |
| Minor planet category |
Main belt |
| Epoch June 14, 2006 (JD 2453900.5) | |
| Aphelion | 398.817 Gm (2.666 AU) |
| Perihelion | 309.338 Gm (2.068 AU) |
| Semi-major axis | 354.077 Gm (2.367 AU) |
| Eccentricity | 0.126 |
| Orbital period | 1330.017 d (3.64 a) |
| Average orbital speed | 19.28 km/s |
| Mean anomaly | 196.549° |
| Inclination | 2.097° |
| Longitude of ascending node | 307.820° |
| Argument of perihelion | 86.560° |
|
Physical characteristics
|
|
| Dimensions | 100.15 km † |
| Mass | 1.1×1018? kg |
| Mean density | 2.0? g/cm³ |
| Equatorial surface gravity | 0.0280? m/s² |
| Escape velocity | 0.0529? km/s |
| Rotation period | 0.57025 d (13.686 h) [1] |
| Albedo | 0.1714 (geometric)† |
| Temperature | ~177 K |
| Spectral type | S |
| Apparent magnitude | 9.36 (brightest) |
| Absolute magnitude | 7.57 |
30 Urania (pronounced /jʊˈreɪniə/, Greek: Ουρανία) is a large Main belt asteroid.
Urania was discovered by J. R. Hind on July 22, 1854. It was his last asteroid discovery. It is named after Urania, the Greek Muse of astronomy.
[edit] References
[edit] External links
- Orbital simulation from JPL (Java) / Ephemeris
 |
This article about an S-type asteroid native to the Main Belt is a stub. You can help Wikipedia by expanding it. |
|
|||||
