285 Regina
Regina (minor planet designation: 285 Regina) is a typical, although fairly large, Main belt asteroid.[2] It was discovered by Auguste Charlois on 3 August 1889 in Nice, France.
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | 3 August 1889 |
| Designations | |
| (285) Regina | |
| Pronunciation | /rɪˈdʒaɪnə/[1] |
| Main belt | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 104.63 yr (38215 d) |
| Aphelion | 3.72130 AU (556.699 Gm) |
| Perihelion | 2.44540 AU (365.827 Gm) |
| 3.08335 AU (461.263 Gm) | |
| Eccentricity | 0.20690 |
| 5.41 yr (1977.6 d) | |
Average orbital speed | 16.97 km/s |
| 137.349° | |
| 0° 10m 55.348s / day | |
| Inclination | 17.6192° |
| 311.385° | |
| 14.4439° | |
| Physical characteristics | |
| Dimensions | 45.13±2.2 km |
| 9.542 h (0.3976 d) | |
| 0.0547±0.006 | |
| Temperature | unknown |
| 10.7 | |
References
- "Regina". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
- "285 Regina". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
External links
- 285 Regina at AstDyS-2, Asteroids—Dynamic Site
- 285 Regina at the JPL Small-Body Database
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