984 Gretia
|
A three-dimensional model of 984 Gretia based on its light curve. | |
| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg |
| Discovery date | 27 August 1922 |
| Designations | |
| 1922 MH | |
Main belt  | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 93.65 yr (34205 days) |
| Aphelion | 3.3569213 AU (502.18828 Gm) |
| Perihelion | 2.2496729 AU (336.54628 Gm) |
| 2.8032971 AU (419.36728 Gm) | |
| Eccentricity | 0.1974904 |
| 4.69 yr (1714.4 d) | |
| 341.21603° | |
| 0° 12m 35.967s / day | |
| Inclination | 9.092957° |
| 314.21811° | |
| 55.548376° | |
| Earth MOID | 1.26169 AU (188.746 Gm) |
| Jupiter MOID | 2.17523 AU (325.410 Gm) |
| Jupiter Tisserand parameter | 3.277 |
| Physical characteristics | |
Mean radius | 15.955±1.55 km |
| 5.778 h (0.2408 d) | |
Sidereal rotation period | 5.781 h[1] |
| 0.4239±0.095[1] | |
| Sr[1] | |
| 9.03[1] | |
|
| |
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984 Gretia is a main belt asteroid orbiting the Sun. It orbits about twice as far out as Mars and takes 4.7 years to orbit the Sun.[1]
References
- 1 2 3 4 5 6 7 "984 Gretia". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 984. Retrieved 2 May 2016.
External links
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