Ophelia (Moon)
b>Ophelia
bgcolor="#ffc0c0" colspan="2" | Discovery
align="left" | Discovered by
Voyager 2
align="left" | Discovered in
1986
bgcolor="#ffc0c0" colspan="2" |
Orbital
characteristics
align="left" | Mean
radius
53,764
km
align="left" |
Eccentricity
0.0101
align="left" |
Orbital period
0.37641d
align="left" |
Inclination
0.09°
align="left" | Is a
satellite
of
Uranus
bgcolor="#ffc0c0" colspan="2" | Physical characteristics
align="left" | Mean
diameter
42.8 km
align="left" | Surface
area
km
2
align="left" |
Mass
5.4×10
16
kg
align="left" | Mean
density
1.3 g/cm
3
align="left" | Surface
gravity
0.0078
m/s
2
align="left" |
Rotation period
?
align="left" |
Axial tilt
?°
align="left" |
Albedo
0.07
align="left" | Surface
temp.
{| cellspacing="0" cellpadding="2" border="0"
min !! mean !! max
K
K
K
}
align="left" |
Atmospheric pressure
0
kPa
Ophelia
(
oh-fee'-lee-a
) is a
moon
of
Uranus
. It was named after the daughter of Polonius in
William Shakespeare
's play
Hamlet
. Ophelia acts as the outer
shepherd satellite
for Uranus' epsilon
ring
. Its orbit is within Uranus' synchronous orbit radius, and is therefore slowly decaying due to
tidal forces
. It was discovered from the images taken by
Voyager 2
on
January 20
,
1986
, and was given the temporary designation
S/1986 U 8
. It is also designated
Uranus VII
. There is also an
asteroid
called
171 Ophelia
.
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