34 Circe
From Infogalactic: the planetary knowledge core
.png)
A three-dimensional model of 34 Circe based on its light curve.
|
|
| Discovery | |
|---|---|
| Discovered by | J. Chacornac |
| Discovery date | April 6, 1855 |
| Designations | |
|
Named after
|
Circe |
| 1965 JL | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch November 4, 2013 (JD 2456600.5) | |
| Aphelion | 2.967739 AU |
| Perihelion | 2.406230 AU |
| 2.686984 AU | |
| Eccentricity | 0.1045 |
| 4.40 a (1607.332 d) | |
|
Average orbital speed
|
18.12 km/s |
| 39.80474° | |
| Inclination | 5.498° |
| 184.44157° | |
| 330.2330° | |
| Physical characteristics | |
| Dimensions | 113.02 ± 4.90[2] km |
| Mass | (3.66 ± 0.03) × 1018[2] kg |
|
Mean density
|
4.83 ± 0.63[2] g/cm3 |
| ~0.0317 m/s² | |
| ~0.0600 km/s | |
| 0.5063 d (12.15 h) [1] | |
| Albedo | 0.0541 [1] |
| Temperature | ~172 K |
|
Spectral type
|
C |
| 8.51 | |
34 Circe (/ˈsɜːrsiː/ SUR-see) is a large, very dark main-belt asteroid. It was discovered by French astronomer J. Chacornac on April 6, 1855, and named after Circe, a goddess in Greek mythology.
Photometric observations of this asteroid made during 2007 at the Organ Mesa Observatory in Las Cruces, New Mexico gave an asymmetrical bimodal light curve with a period of 12.176 ± 0.002 hours and a brightness variation of 0.17 ± 0.02 in magnitude.[3]
