577 Rhea
Rhea (minor planet designation: 577 Rhea) is a minor planet orbiting the Sun. It is named after Rhea, one of the Titans in Greek mythology. The name may have been inspired by the asteroid's provisional designation 1905 RH.
_Rhea.png.webp) Modelled shape of Rhea from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg |
| Discovery date | 20 October 1905 |
| Designations | |
| (577) Rhea | |
| Pronunciation | /ˈriːə/[1] |
| 1905 RH | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.32 yr (40296 d) |
| Aphelion | 3.5931 AU (537.52 Gm) |
| Perihelion | 2.6297 AU (393.40 Gm) |
| 3.1114 AU (465.46 Gm) | |
| Eccentricity | 0.15481 |
| 5.49 yr (2004.6 d) | |
| 105.219° | |
| 0° 10m 46.524s / day | |
| Inclination | 5.2964° |
| 328.579° | |
| 330.784° | |
| Physical characteristics | |
Mean radius | 19.765±1.15 km |
| 12.249 h (0.5104 d) | |
| 0.1792±0.023 | |
| 9.4 | |
References
- Noah Webster (1884) A Practical Dictionary of the English Language
- "577 Rhea (1905 RH)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 5 May 2016.
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