546 Herodias
Herodias (minor planet designation: 546 Herodias) is a carbonaceous asteroid from the central regions of the asteroid belt, approximately 66 kilometers in diameter. It is an identified Eunomian interloper. It was named after the biblical character Herodias.
| Discovery | |
|---|---|
| Discovered by | P. Götz |
| Discovery site | Heidelberg Obs. |
| Discovery date | 10 October 1904 |
| Designations | |
MPC designation | (546) Herodias |
| Pronunciation | /hɪˈroʊdiəs/ |
Named after | Herodias |
Alternative designations | 1904 PA |
Minor planet category | main-belt · (middle) Eunomian interloper |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 111.48 yr (40719 d) |
| Aphelion | 2.89852 AU (433.612 Gm) |
| Perihelion | 2.29588 AU (343.459 Gm) |
Semi-major axis | 2.59720 AU (388.536 Gm) |
| Eccentricity | 0.116018 |
Orbital period (sidereal) | 4.19 yr (1528.8 d) |
Mean anomaly | 149.511° |
Mean motion | 0° 14m 7.714s / day |
| Inclination | 14.8547° |
Longitude of ascending node | 21.7900° |
| 108.626° | |
| Physical characteristics | |
| Dimensions | 66.02±3.8 km (mean) |
Mean radius | 33.01±1.9 km |
Synodic rotation period | 10.4 hours 10.77 h (0.449 d) |
| 0.0534 ± 0.007 | |
| C | |
| 9.70 | |
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