Dia (moon)

Dia
Discovery
Discovered byScott S. Sheppard, David C. Jewitt, Yanga R. Fernández, and Eugene A. Magnier
Discovery siteMauna Kea Obs.
Discovery date5 December 2000
11 September 2012 (rediscovery)
Designations
Designation
Jupiter LIII
Pronunciation/ˈdaɪ.ə/[1]
Named after
Δῖα Dīa
S/2000 J 11
AdjectivesDian /ˈdaɪ.ən/
Orbital characteristics [2]
12118000 km
Eccentricity0.211
+287.0 days
169.9°
Inclination28.23°
290.9°
178.0°
Satellite ofJupiter
GroupHimalia group
Physical characteristics
4 km
22.4

Dia /ˈdaɪ.ə/, also known as Jupiter LIII, is a prograde irregular satellite of Jupiter. Provisionally known as S/2000 J 11, it received its name on March 7, 2015.[3] It is named after Dia, daughter of Deioneus (or Eioneus), wife of Ixion. According to Homer, she was seduced by Zeus in stallion form; Pirithous was the issue.

The satellite is one of several known small bodies in the Himalia group.[4]

Dia is thought to be about 4 kilometres in diameter.[5] It orbits Jupiter at an average distance of 12 million km in 274 days, at an inclination of 28° (to Jupiter's equator), and with an eccentricity of 0.21.[6]

  1. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  2. ^ S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
  3. ^ CBET (Central Bureau Electronic Telegram) 4075: 20150307: Satellites of Jupiter, March 7, 2015
  4. ^ Sheppard, S. S.; Jewitt, D. C.; An abundant population of small irregular satellites around Jupiter Archived August 13, 2006, at the Wayback Machine, Nature, 423 (May 2003), pp. 261–263
  5. ^ Sheppard, S. S.; Jewitt, D. C.; Porco, C.; Jupiter's outer satellites and Trojans Archived June 14, 2007, at the Wayback Machine, 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
  6. ^ Cite error: The named reference MPEC2012-R22 was invoked but never defined (see the help page).