Carme photographed by the Haute-Provence Observatory in December 1998 | |
Discovery [1] | |
---|---|
Discovered by | Seth B. Nicholson |
Discovery site | Mt. Wilson Observatory |
Discovery date | 30 July 1938 |
Designations | |
Designation | Jupiter XI |
Pronunciation | /ˈkɑːrmiː/[2][3] |
Named after | Κάρμη Karmē |
Adjectives | Carmean /kɑːrˈmiːən/[4] |
Orbital characteristics[5] | |
Epoch 17 December 2020 (JD 2459200.5) | |
Observation arc | 82.02 yr (29,958 days) |
0.1509370 astronomical unit|AU (22,579,850 km) | |
Eccentricity | 0.2294925 |
Orbital period | –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[6] |
Rotation period | 10.40±0.05 h[7] |
Albedo | 0.035±0.006[6] |
Spectral type | D[6] |
Apparent magnitude | 18.9[8] |
Absolute magnitude (H) | 10.5[5] |
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.[1] It is named after the mythological Carme, mother by Zeus of Britomartis, a Cretan goddess.
Carme did not receive its present name until 1975;[9] before then, it was simply known as Jupiter XI. It was sometimes called "Pan"[10] between 1955 and 1975 (Pan is now the name of a satellite of Saturn).
It gives its name to the Carme group, made up of irregular retrograde moons orbiting Jupiter at a distance ranging between 23 and 24 Gm and at an inclination of about 165°. Its orbital elements are as of January 2000.[11] They are continuously changing due to solar and planetary perturbations.
With a diameter of 46.7±0.9 km, it is the largest member of the Carme group and the fourth largest irregular moon of Jupiter.[6] It is light red in color (B−V=0.76, V−R=0.47), similar to D-type asteroids and consistent with Taygete, but not Kalyke.[12]
Original source: https://en.wikipedia.org/wiki/Carme (moon).
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