Carme (moon)

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Carme
Discovery
Discovered byS. B. Nicholson
Discovery dateJuly 30, 1938[1]
Orbital characteristics
Mean orbit radius
23,400,000 km[2]
Eccentricity0.25[2]
702.28 d (2.045 a)[2]
2.253 km/s
Inclination164.91° (to the ecliptic)
167.53° (to Jupiter's equator)[2]
Satellite ofJupiter
Physical characteristics
Mean radius
23 km
~6600 km²
Volume~51,000 km³
Mass1.3×1017 kg
Mean density
2.6 g/cm³ (assumed)
~0.017 m/s2 (0.0017 g)
~0.028 km/s
Albedo0.04 (assumed)
Temperature~124 K

Carme is a retrograde non-spherical moon of Jupiter. It was found 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 get its present name until 1975;[3] before then, it was simply known as Jupiter XI. It was sometimes called "Pan"[4] between 1955 and 1975. Note that Pan is now the name of a moon of Saturn.

It gives its name to the Carme group, made up of non-spherical retrograde moons orbiting Jupiter at a distance ranging between 23,000,000 and 24,000,000 km and at an inclination of about 165°. Its orbital elements are as of January 2000.[2] They are changing a lot due to Solar and planetary perturbations.

References[change | change source]

  1. 1.0 1.1 Nicholson, S. B. (1938). "Two New Satellites of Jupiter". Publications of the Astronomical Society of the Pacific 50: pp. 292–293. http://adsabs.harvard.edu//full/seri/PASP./0050//0000292.000.html. 
  2. 2.0 2.1 2.2 2.3 2.4 Jacobson, R. A. (2000). "The Orbits of Outer Jovian Satellites". Astronomical Journal 120: pp. 2679-2686. doi:10.1086/316817. 
  3. IAUC 2846: Satellites of Jupiter 1974 October 7 (naming the moon)
  4. Payne-Gaposchkin, Cecilia; Katherine Haramundanis (1970). Introduction to Astronomy. Englewood Cliffs, N.J.: Prentice-Hall. ISBN 0-134-78107-4.

Other websites[change | change source]