33 Polyhymnia
Orbit of 33 Polyhymnia (1 Jan 2009) | |
| Discovery | |
|---|---|
| Discovered by | J. Chacornac |
| Discovery date | October 28, 1854 |
| Designations | |
| (33) Polyhymnia | |
| Pronunciation | /pɒliˈhɪmniə/ |
Named after | Polyhymnia |
| A887 HA; 1938 FE; 1953 AK; 1957 YL; 1963 DG; 1976 YT7 | |
| Main belt | |
| Orbital characteristics | |
| 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) 53.98±0.91 km 64±6 km (occultation) |
| 18.60888±0.00029 h | |
| S or Sq | |
| 8.55 | |
33 Polyhymnia is a main belt asteroid that was discovered by French astronomer Jean Chacornac on October 28, 1854 and named after Polyhymnia, the Greek Muse of sacred hymns.