Dia (moon)

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S/2000 J 11
Discovered byScott S. Sheppard et al.
Discovery date2000
Avgdistance from the center of its orbital path12.555 million km
Angle above the reference plane
What it orbitsJupiter
Size and other qualities
Average radius~2 km

Dia (S/2000 J 11) ls the second-outermost prograde non-spherical moon of Jupiter. It was found by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2000.[1][2]

Dia is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 12,555,000 km in 287 days, at an inclination of 28° (to Jupiter's equator), and with an orbital eccentricity of 0.248.[3]

The moon, has been included in the Himalia group.[4] However, its orbit is not known with precision and the mean orbital elements have not been calculated.

References[change | change source]

  1. IAUC 7555: Satellites of Jupiter 2001 January 5 (discovery)
  2. MPEC 2001-A29: S/2000 J 7, S/2000 J 8, S/2000 J 9, S/2000 J 10, S/2000 J 11 2001 January 15 (discovery and ephemeris)
  3. Sheppard, S. S.; Jewitt, D. C.; Porco, C.; Jupiter's outer satellites and Trojans, in Jupiter: The planet, satellites and magnetosphere, edited by Fran Bagenal, Timothy E. Dowling, William B. McKinnon, Cambridge Planetary Science, Vol. 1, Cambridge, UK: Cambridge University Press, ISBN 0-521-81808-7, 2004, pp. 263-280
  4. Sheppard, S. S.; Jewitt, D. C.; An abundant population of small irregular satellites around Jupiter, Nature, 423 (May 2003), pp. 261-263
  1. Ephemeris IAU-MPC NSES
  2. Mean orbital parameters NASA JPL

Other websites[change | change source]