Uranus

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Uranus
Diameter 4DE Rotation Period 17.25
hours Orbital Period 84 years Distance
from Sun 19.2AU Orbit Eccentricity 0.05 Tilt
98 degrees! Temperature -201C
Atmosphere hydrogen, helium and
methane Gravity 1.15g Moons gt21 Visits 1 Voyag
er 2
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Voyager 2 views of Uranus
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Principle Moons of Uranus
Miranda (500 km)
Umbriel (1200 km)
Ariel (1200 km)
Titania (1600 km)
Oberon (1500 km)
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Miranda
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Neptune
Diameter 3.98DE Rotation Period 16
hours Orbital Period 165 years Distance
from Sun 30.058AU Temperature -180C Atmosphere h
ydrogen, helium and methane Orbit Eccentricity
0.01 Tilt 29
degrees Gravity 1.194g Moons 8 Visits 1 Voyage
r 2
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1989 Voyager 2 Discovers Neptune's Rings
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Triton
2700 km
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Triton's Polar Cap The only large moon with a
retrograde orbit (captured Kuiper Belt
object?) Has ice volcanos that produce geysers of
liquid nitrogen