S/2003 J 2

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S/2003 J 2
Discovery
Discovered by University of Hawaii team led by Scott S. Sheppard and David C. Jewitt
Discovery date March 4, 2003
Names
Orbit
How long it takes to complete an orbit 981.55 d (60.48 a)
Angle above the reference plane
("inclination")
154° (to the ecliptic)
152° (to Jupiter's equator)
What it orbits Jupiter

S/2003 J 2 is an unnamed non-spherical moon of Jupiter. It was found by a team of astronomers from the University of Hawaii led by Scott S. Sheppard and David C. Jewitt and was announced on March 4, 2003 [1][2] As of 2006, it is Jupiter's farthest known moon.

S/2003 J 2 is about two kilometres in diameter, and orbits Jupiter at an average distance of 29,540,000 km in 980 days, at an inclination of 154° to the ecliptic (152° to Jupiter's equator) and with an orbital eccentricity of 0.2255.[3][4][5]

It seems to belong to a group all of its own, with semi-major axis ~30,000,000 km and inclination ~160°.[4]

References[change | change source]

  1. IAUC 8087: Satellites of Jupiter 2003 March 4 (discovery)
  2. Sheppard, S. S.; and Jewitt, D. C.; An Abundant Population of Small Irregular Satellites Around Jupiter, Nature, Vol. 423 (May 2003), pp. 261-263
  3. MPEC 2003-E11: S/2003 J 1, 2003 J 2, 2003 J 3, 2003 J 4, 2003 J 5, 2003 J 6, 2003 J 7 2003 March 4 (discovery and ephemeris)
  4. 4.0 4.1 Mean orbital elements from NASA JPL (August 2006)
  5. Current (2004 July 14, JD= 2453200.5) orbital elements as reported by IAU-MPC NSES are a= 0.2024818 AU, e=0.1882469 i=153.52114