Elara (pronounced /ˈɛlərə/ EL-ər-ə, or as in Greek Ελάρα) is a prograde irregular satellite of Jupiter. It was discovered by Charles Dillon Perrine at Lick Observatory in 1905. It is the eighth largest moon of Jupiter and is named after the mother by Zeus of the giant Tityus. 
Elara did not receive its present name until 1975; before then, it was simply known as Jupiter VII. It was sometimes called "Hera" between 1955 and 1975.
Elara belongs to the Himalia group, five moons orbiting between 11 and 13 Gm from Jupiter at an inclination of about 27.5°. Its orbital elements are as of January 2000. They are continuously changing due to Solar and planetary perturbations.
In February and March 2007, the New Horizons spacecraft to Pluto captured Elara in several LORRI images from a distance of five million miles.
* Jupiter's moons in fiction
1. ^ a b Perrine, C. D. (1905-02-27). "Satellites of Jupiter". Harvard College Observatory Bulletin 178. http://adsabs.harvard.edu//full/seri/BHarO/0178//0000001.000.html.
* Elara on 1998-08-15 03:21 UTC (Crédit : OHP/IMCCE/CNRS) / SkyView 23 47 09 -02 40 46
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