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Ariel (moon)

Ariel
Discovery
Discovered byWilliam Lassell
Discovered in1851
Orbital characteristics
Mean radius190,900 km
Perihelion
Aphelion
Eccentricity
Orbital period2.52 days
Inclination°
Satellite ofUranus
Physical characteristics
Equatorial diameter1160 km
Surface area4,200,000 km2
Masskg
Mean densityg/cm3
Surface gravitym/s2
Escape velocitykm/s
Rotation period2.52 days
Axial tilt°
Albedo
Surface temperature
minmeanmax
K K K
Atmospheric pressure0 kPa

Ariel is a moon of Uranus discovered in 1851 by William Lassell. Its composition is roughly 50% water ice, 30% silicate rock, and 20% methane ice, and it appears to have regions of fresh frost in places. Largely devoid of impact craters, Ariel appears to have undergone a period of intense geological activity that has produced a huge network of fault canyons and liquid water outflows over its surface.

Referenced By

1000000km2 | 1851 | 1 E12 m² | 1e12 m2 | Ariel | Ganymede (moon) | Ganymede (moon of Jupiter) | List of astronomical topics | List of astronomical topics (N-Z) | List of solar system objects | Natural satelite | Natural satellite | Oberon (moon) | Planet Uranus | Planetary nomenclature | Titania (moon) | Uranus (planet)

 

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Ariel (moon)".

 

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