Science Fair Project Encyclopedia
Lysithea (moon)
| Discovery | |||||||
|---|---|---|---|---|---|---|---|
| Discovered by | S. B. Nicholson | ||||||
| Discovered in | 1938 | ||||||
| Orbital characteristics | |||||||
| Mean radius | 11,720,000 km | ||||||
| Eccentricity | 0.081-0.155 | ||||||
| Orbital period | 259.2d | ||||||
| Inclination | 29° | ||||||
| Is a satellite of | Jupiter | ||||||
| Physical characteristics | |||||||
| Mean diameter | 36 km | ||||||
| Surface area | km2 | ||||||
| Mass | 7.77×1016 kg | ||||||
| Mean density | 2.6 g/cm3 | ||||||
| Surface gravity | 0.0013 m/s2 | ||||||
| Rotation period | ? | ||||||
| Axial tilt | ?° | ||||||
| Albedo | 0.04 | ||||||
| Surface temp. |
| ||||||
| Atmospheric pressure | 0 kPa | ||||||
Lysithea (lye-sith'-ee-a or li-sith'-ee-a, IPA , /lɪ'sɪ.θi.ə/; Greek Λυσιθέα) is a moon of Jupiter. It was discovered by Seth Barnes Nicholson in 1938 at Mount Wilson Observatory and is named after the mythological Lysithea , daughter of Oceanus and one of Zeus' lovers.
Lysithea did not receive its present name until 1975; before then, it was simply known as Jupiter X. It was sometimes called "Demeter".
It belongs to the Himalia group, five moons orbiting between 11 and 13 Gm from Jupiter at an inclination of about 27.5°.
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Last updated: 07-11-2005 12:00:42
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details