33 Polyhymnia
Main-belt asteroid / From Wikipedia, the free encyclopedia
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Polyhymnia (minor planet designation: 33 Polyhymnia) is a main belt asteroid that was discovered by French astronomer Jean Chacornac on October 28, 1854[1] and named after Polyhymnia, the Greek Muse of sacred hymns.
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | J. Chacornac |
Discovery date | October 28, 1854 |
Designations | |
(33) Polyhymnia | |
Pronunciation | /pɒliˈhɪmniə/[2] |
Named after | Polyhymnia |
A887 HA; 1938 FE; 1953 AK; 1957 YL; 1963 DG; 1976 YT7 | |
Main belt | |
Orbital characteristics[3] | |
Epoch April 18, 2013 (JD 2456400.5) | |
Aphelion | 573.518 Gm (3.83373 AU) |
Perihelion | 284.409 Gm (1.90116 AU) |
428.964 Gm (2.86745 AU) | |
Eccentricity | 0.33698 |
1,773.541 d (4.86 a) | |
256.476° | |
Inclination | 1.869° |
8.595° | |
338.123° | |
Physical characteristics | |
Dimensions | 54.39±11.84 km (infrared)[4] 53.98±0.91 km[5] 64±6 km (occultation)[6] |
18.60888±0.00029 h[7] | |
S[3] or Sq[8] | |
8.55[3] | |
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