[moon] Umbriel is a moon of Uranus discovered on October 24, 1851, by William Lassell. It was discovered at the same time as Ariel and named after a character in Alexander Pope`s poem The Rape of the Lock. Umbriel consists mainly of ice with a substantial fraction of rock, and may be differentiated into a rocky core and an icy mantle. The s...
Found on
http://en.wikipedia.org/wiki/Umbriel_(moon)
third nearest of the five major moons of Uranus and the one having the darkest and oldest surface of the group. Its discovery is attributed to the ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/u/6
The southern hemisphere of Umbriel displays heavy cratering in this Voyager 2 image, taken Jan. 24, 1986, from a distance of 557,000 km (346,000 miles). The third largest and the darkest moon of Uranus. Umbriel is 16th moon in order from the planet. It is named after the 'dusky melancholy sprite...
Found on
http://www.daviddarling.info/encyclopedia/U/Umbriel.html
Satellite of the planet Uranus. See TABLE 9. URANUS - SATELLITE DATA
Found on
http://www.encyclo.co.uk/local/20448
a moon of the planet Uranus.
Found on
https://www.infoplease.com/dictionary/umbriel
No exact match found.
