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577 Rhea 
Summary
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.
 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 edit
- ^ 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.
External links edit
- 577 Rhea at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
- 577 Rhea at the JPL Small-Body Database
