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 AU (22,579,850 km) | |
Eccentricity | 0.2294925 |
–693.17 d | |
17.48241 ° | |
0° 31m 9.68s / day | |
Inclination | 163.53496° (to ecliptic) |
209.94088° | |
133.45035° | |
Satellite of | Jupiter |
Group | Carme group |
Physical characteristics | |
Mean diameter | 46.7±0.9 km [6] |
Mass | 8.69×1016 kg (calculated) |
Mean
density | 1.63 g/cm3 (assumed) [7] |
10.40±0.05 h [8] | |
Albedo | 0.035±0.006 [6] |
Spectral type | D [6] |
18.9 [9] | |
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; [10] before then, it was simply known as Jupiter XI. It was sometimes called " Pan" [11] 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 17 December 2020. [5] 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]
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 AU (22,579,850 km) | |
Eccentricity | 0.2294925 |
–693.17 d | |
17.48241 ° | |
0° 31m 9.68s / day | |
Inclination | 163.53496° (to ecliptic) |
209.94088° | |
133.45035° | |
Satellite of | Jupiter |
Group | Carme group |
Physical characteristics | |
Mean diameter | 46.7±0.9 km [6] |
Mass | 8.69×1016 kg (calculated) |
Mean
density | 1.63 g/cm3 (assumed) [7] |
10.40±0.05 h [8] | |
Albedo | 0.035±0.006 [6] |
Spectral type | D [6] |
18.9 [9] | |
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; [10] before then, it was simply known as Jupiter XI. It was sometimes called " Pan" [11] 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 17 December 2020. [5] 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]