Online 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. |
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| Atmospheric pressure | 0 kPa | ||||||
Lysithea (pronounced "ly SITH ee a") 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 belongs to the Himalia group, five moons orbiting between 11 and 13 Gm from Jupiter at an inclination of about 27.5°.
External links
| Jupiter |
|---|
| Amalthea group | Io | Europa | Ganymede | Callisto | Themisto | Himalia group | S/2003 J 20 |
| S/2003 J 12 | Ananke group | Carme group | Pasiphaė group | S/2003 J 2 |
| (see also: Jupiter's natural satellites) |
Last updated: 11-08-2004 11:20:48