planet uranus data and information source
PLANET URANUS
Information on URANUS STATISTICS
| Uranus Statistics
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| Discovered by | William Herschel
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| Date of discovery | 1781
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| Mass (kg) | 8.686e+25
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| Mass (Earth = 1) | 1.4535e+01
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| Equatorial radius (km) | 25,559
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| Equatorial radius (Earth = 1) | 4.0074
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| Mean density (gm/cm^3) | 1.29
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| Mean distance from the Sun (km) | 2,870,990,000
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| Mean distance from the Sun (Earth = 1) | 19.1914
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| Rotational period (hours) | -17.9
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| Orbital period (years) | 84.01
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| Mean orbital velocity (km/sec) | 6.81
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| Orbital eccentricity | 0.0461
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| Tilt of axis (degrees) | 97.86
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| Orbital inclination (degrees) | 0.774
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| Equatorial surface gravity (m/sec^2) | 7.77
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| Equatorial escape velocity (km/sec) | 21.30
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| Visual geometric albedo | 0.51
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| Magnitude (Vo) | 5.52
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| Mean cloud temperature | -193°C
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| Atmospheric pressure (bars) | 1.2
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Atmospheric compositionHydrogenHeliumMethane
83%
15%
2%
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