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Distance from the Sun |
mil km | 2,870.99
| mil miles | 1783
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Orbital Period (length of year) |
Earth days | 30685
| Earth years | 84.013
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Local Days per Year rotations per orbit |
42,733.46
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Length of day in Earth Time |
17h 14m
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Axial Tilt |
97.86�
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Orbital Inclination from Earth's orbit |
0.774�
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Orbital Eccentricity from circular |
0.0461
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Sidereal Rotation in Earth days |
-0.71833
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Mean Orbital Velocity km/s |
6.80
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Visual Geometric Albedo |
.51
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Vo or Object's Visible Magnitude at Opposition |
5.52
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Mean Radius km |
25,559
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Mean Diameter at Equator |
km | 51,120
| miles | 31,814
| x Earth | 4
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Mass |
kg | 8.686 e+25
| x Earth | 14.5
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Density (grams per cm3)
| 1.29
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Gravity x Earth |
.91
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Escape Velocity in km per sec
| 21.297
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Uranus, the Greek god of the Sky.
The seventh planet out from the sun is a veritable twin of the next planet out, Neptune.
Icy atmosphere: about 83% hydrogen, 15% helium, 2% methane - and trace ammounts of ammonia.
Uranus has at least 15 moons
- five main orbital spheres ripe for mining and eventual suburban colonization: Oberon, Titania, Umbriel, Ariel and Miranda
- and ten small enough to have eluded our attention until space probes were invented and sent to investigate:
Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda and Puck.
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Year disc. |
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Distance (in miles) |
|
Revolution (in days) |
Mass (x Luna) |
|
Density |
|
Diameter (in miles) |
| | | | |
| | | |
Cordelia | 1986 | 30,944 | .333 | ? | ? | 16 |
Ophelia | 1986 | 33,430 | .375 | ? | ? | 19 |
Bianca | 1986 | 36,785 | .433 | ? | ? | 25 |
Cressida | 1986 | 38,401 | .463 | ? | ? | 37 |
Desdemona | 1986 | 38,960 | .475 | ? | ? | 34 |
Juliet | 1986 | 40,016 | .492 | ? | ? | 53 |
Portia | 1986 | 41,072 | .513 | ? | ? | 68 |
Rosalind | 1986 | 43,496 | .558 | ? | ? | 34 |
Belinda | 1986 | 46,789 | .621 | ? | ? | 40 |
Puck | 1986 | 53,438 | .763 | ? | ? | 96 |
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Miranda | 1948 | 80,716 | 1.410 | .001 | 1.26 | 301 |
Ariel | 1851 | 118,620 | 2.521 | .018 | 1.65 | 721 |
Umbriel | 1851 | 165,285 | 4.146 | .017 | 1.44 | 739 |
Titania | 1787 | 271,104 | 8.704 | .047 | 1.59 | 1000 |
Oberon | 1787 | 362,508 | 13.463 | .040 | 1.50 | 963 |
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