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Umbriel
Orbit data - Object data - Nomenclature - Links Go to the bottom of the page
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Photo of the satellite Umbriel of the planet Uranus
Umbriel   Uranus II

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Mean distance from the planet Uranus 266.300 km
Orbital period around the planet Uranus (sideric) 4,144 d
Mean orbital velocity 4,67 km/s
Orbital inclination 0,36 °
Eccentricity of the orbit around the planet Uranus 0,0050
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Discovered by William Lassell 1851
Mass 1,17 × 1021 kg
Equatorial radius 584,7 km
Mean density 1,40 g/cm³
Escape velocity 0,538 km/s
Rotational period (synchronous) 4,144 d
Albedo 0,19
Apparent magnitude + 14,8 mvis
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Umbriel is a malevolent spirit in "The Rape of the Lock" from Alexander Pope.

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File icon NASA (Voyager 2) - Uranian System
© Calvin J. Hamilton ("Views of the Solar System")
File icon NASA (Voyager 2) - Umbriel
© Calvin J. Hamilton ("Views of the Solar System")
File icon NASA (Voyager 2) - Polar Stereographic Map of Umbriel
© A. Tayfun Oner ("Views of the Solar System")
File icon Welcome to the Planets
Online version of the "Planetary Data System Educational CD-ROM"
File icon A Multimedia Tour of the Solar System - The Nine Planets
© William A. Arnett
© 2021 by Bernd Onasch - Imprint Go to the top of the page
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