umbriel

n.

天（王）卫二；

Umbriel
UMBRIEL
Umbriel
Uranian Satellites: Water Ice on Ariel and Umbriel.
The Uranian satellites: Water ice on Ariel and Umbriel
Surfaces of section in the Miranda-Umbriel 3:1 inclination problem
Astrometry of Iapetus, Ariel, Umbriel, and Titania from eclipses and occultations
Narrow-band spectrophotometry of Ariel, Umbriel, Titania, Oberon, and Triton
Cratering history of the Uranian satellites: Umbriel, Titania, and Oberon
The origin of chaotic behaviour in the Miranda-Umbriel 3 : 1 resonances
Evidence from Voyager II photometry for early resurfacing of Umbriel
Distributions of H 2 O and CO 2 ices on Ariel, Umbriel, Titania, and Oberon from IRTF/SpeX observations
Tidal evolution of the Uranian satellites: III. Evolution through the Miranda-Umbriel 3:1, Miranda-Ariel 5:3, and Ariel-Umbriel 2:1 ...