Umbriel
Orbit data
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Object data
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Nomenclature
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Links
Umbriel
Uranus II
Orbit data
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
Object data
Discovered by
William Lassell
1851
Mass
1,17 × 10
21
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
m
vis
Nomenclature
Umbriel
is a malevolent spirit in "The Rape of the Lock" from
Alexander Pope
.
Links
NASA (Voyager 2) -
Uranian System
© Calvin J. Hamilton ("Views of the Solar System")
NASA (Voyager 2) -
Umbriel
© Calvin J. Hamilton ("Views of the Solar System")
NASA (Voyager 2) -
Polar Stereographic Map of Umbriel
© A. Tayfun Oner ("Views of the Solar System")
Welcome to the Planets
Online version of the "Planetary Data System Educational CD-ROM"
A Multimedia Tour of the Solar System -
The Nine Planets
© William A. Arnett
© 2021 by
Bernd Onasch
-
Imprint