285 Regina
Discovery | |
---|---|
Discovered by | Auguste Charlois |
Discovery date | 3 August 1889 |
Designations | |
Main belt | |
Orbital characteristics[1] | |
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° | |
Earth MOID | 1.43585 AU (214.800 Gm) |
Jupiter MOID | 1.61715 AU (241.922 Gm) |
Jupiter Tisserand parameter | 3.123 |
Physical characteristics | |
Dimensions | ±2.2 km 45.13 |
Mass | unknown |
Mean density | unknown |
Equatorial surface gravity | unknown |
Equatorial escape velocity | unknown |
9.542 h (0.3976 d) | |
±0.006 0.0547 | |
Temperature | unknown |
unknown | |
10.7 | |
|
285 Regina is typical, although fairly large Main belt asteroid.[1] It was discovered by Auguste Charlois on August 3, 1889 in Nice.
References
- 1 2 "285 Regina". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
External links
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