185 Eunike
Synodic rotation period | 21.797 h (0.9082 d)[2] 21.812 ± 0.001 hours[4] | |
| 0.0638±0.002 | ||
| C | ||
| 7.62,[2] 7.45 ± 0.01[4] | ||
Eunike (
minor planet designation: 185 Eunike) is a dark and very large main-belt asteroid, with an approximate diameter of 157 kilometres. It has a primitive carbonaceous
composition.
It was discovered by
Nereid in Greek mythology whose name means 'happy victory'. The name was chosen to celebrate the Treaty of San Stefano
(1878).
Based upon photometric observations made between 2010 and 2014, this asteroid has a rotation period of 21.812 ± 0.001 hours and a brightness variation of 0.08 ± 0.01 in
opposition, the absolute magnitude was measured at 7.45 ± 0.01. It displays a hemispheric albedo dichotomy similar to that on 4 Vesta.[4]
As of 17 September 2020, there have been thirteen observed occultations of stars by Eunike.
References
- ^ Noah Webster (1884) A Practical Dictionary of the English Language
- ^ a b c d "185 Eunike". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ . See Table 1.
- ^ Bibcode:2014MPBu...41..244P.
External links
- 185 Eunike at AstDyS-2, Asteroids—Dynamic Site
- 185 Eunike at the JPL Small-Body Database
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