Carme (moon)
Carme /ˈkɑːrmiː/ is a retrograde irregular satellite of Jupiter. It was discovered by Seth Barnes Nicholson at Mount Wilson Observatory in California in July 1938. It is named after the mythological Carme, mother by Zeus of Britomartis, a Cretan goddess.
Carme photographed by the Haute-Provence Observatory in December 1998 | |
| Discovery | |
|---|---|
| Discovered by | Seth B. Nicholson |
| Discovery site | Mt. Wilson Observatory |
| Discovery date | 30 July 1938 |
| Designations | |
Designation | Jupiter XI |
| Pronunciation | /ˈkɑːrmiː/ |
Named after | Κάρμη Karmē |
| Adjectives | Carmean /kɑːrˈmiːən/ |
| Orbital characteristics | |
| Epoch 17 December 2020 (JD 2459200.5) | |
| Observation arc | 82.02 yr (29,958 days) |
Semi-major axis | 0.1509370 AU (22,579,850 km) |
| Eccentricity | 0.2294925 |
Orbital period (sidereal) | –693.17 d |
Mean anomaly | 17.48241° |
Mean motion | 0° 31m 9.68s / day |
| Inclination | 163.53496° (to ecliptic) |
Longitude of ascending node | 209.94088° |
| 133.45035° | |
| Satellite of | Jupiter |
| Group | Carme group |
| Physical characteristics | |
Mean diameter | 46.7±0.9 km |
| Mass | 8.69×1016 kg (calculated) |
Mean density | 1.63 g/cm3 (assumed) |
Synodic rotation period | 10.40±0.05 h |
| Albedo | 0.035±0.006 |
Spectral type | D |
| 18.9 | |
| 10.5 | |
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