Elara_(moon) Elara_(moon)

Elara (moon) - Definition and Overview

Related Words: Ashtoreth, Astarte, Cynthia, Diana, Hecate, Hekate, Luna, Phoebe, Proteus, Selene, Candle, Century, Chameleon, Crescent
Elara
Discovery
Discovered by C. D. Perrine
Discovered on January 2 1905
Orbital characteristics
Mean radius 11,716,000 km
Eccentricity 0.155-0.272
Orbital period 259.1d
Inclination 1.4-46.7°
Is a satellite of Jupiter
Physical characteristics
Mean diameter 86 km
Surface area km2
Mass 8.7×1018 kg
Mean density 2.6 g/cm3
Surface gravity 0.031 m/s2
Rotation period ~0.5d
Axial tilt  ?°
Albedo 0.03
Surface temp.
min mean max
K K K
Atmospheric pressure 0 kPa

Elara (pronounced "E lar a") is a moon of Jupiter. It was discovered by Charles Dillon Perrine at Lick Observatory in 1905 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 belongs to the Himalia group, five moons orbiting between 11 and 13 Gm from Jupiter at an inclination of about 27.5°.

External links


... | Lysithea | Elara | S/2000 J 11 | ...



Copyright 2009 WordIQ.com - Privacy Policy  :: Terms of Use  :: Contact Us  :: About Us
This article is licensed under the GNU Free Documentation License. It uses material from the this Wikipedia article.