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Carme (moon)

Carme
Carmé.jpg
Discovery
Discovered byS. B. Nicholson
Discovery dateJuly 30, 1938[1]
Designations
Pronunciation/ˈkɑːrm/[2][3]
Named after
Κάρμη Karmē
AdjectivesCarmean /kɑːrˈmən/[4]
Orbital characteristics
23404000 km[5]
Eccentricity0.253[5]
−702.28 d (1.9228 a)[5]
2.253 km/s
Inclination164.91° (to the ecliptic)
167.53° (to Jupiter's equator)[5]
Satellite ofJupiter
GroupCarme group
Physical characteristics
Mean diameter
~46 km[6]
~6600 km²
Volume~51,000 km³
Mass1.3×1017 kg[citation needed]
Mean density
2.6 g/cm³ (assumed)[6]
~0.017 m/s2 (0.0017 g)
~0.028 km/s
Albedo0.04 (assumed)[6]
Temperature~124 K

Carme /ˈkɑːrm/ 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.

History

Carme did not receive its present name until 1975;[7] before then, it was simply known as Jupiter XI. It was sometimes called "Pan"[8] 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.[5] They are continuously changing due to solar and planetary perturbations.

See also

References

  1. ^ a b Nicholson, S. B. (1938). "Two New Satellites of Jupiter". Publications of the Astronomical Society of the Pacific. 50: 292–293. Bibcode:1938PASP...50..292N. doi:10.1086/124963.
  2. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  3. ^ "Carme". Dictionary.com Unabridged. Random House.
  4. ^ Yenne (1987) The Atlas of the Solar System
  5. ^ a b c d e Jacobson, R. A. (2000). "The Orbits of Outer Jovian Satellites" (PDF). Astronomical Journal. 120 (5): 2679–2686. Bibcode:2000AJ....120.2679J. doi:10.1086/316817.
  6. ^ a b c "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 2008-10-24. Retrieved 2008-12-12.
  7. ^ IAUC 2846: Satellites of Jupiter 1974 October 7 (naming the moon)
  8. ^ Payne-Gaposchkin, Cecilia; Katherine Haramundanis (1970). Introduction to Astronomy. Englewood Cliffs, N.J.: Prentice-Hall. ISBN 0-13-478107-4.

External links