planet mercury data and stats
PLANET MERCURY
Information on MERCURY STATISTICS
| Mercury Statistics
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| Mass (kg) | 3.303e+23
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| Mass (Earth = 1) | 5.5271e-02
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| Equatorial radius (km) | 2,439.7
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| Equatorial radius (Earth = 1) | 3.8252e-01
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| Mean density (gm/cm^3) | 5.42
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| Mean distance from the Sun (km) | 57,910,000
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| Mean distance from the Sun (Earth = 1) | 0.3871
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| Rotational period (days) | 58.6462
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| Orbital period (days) | 87.969
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| Mean orbital velocity (km/sec) | 47.88
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| Orbital eccentricity | 0.2056
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| Tilt of axis (degrees) | 0.00
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| Orbital inclination (degrees) | 7.004
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| Equatorial surface gravity (m/sec^2) | 2.78
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| Equatorial escape velocity (km/sec) | 4.25
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| Visual geometric albedo | 0.10
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| Magnitude (Vo) | -1.9
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| Mean surface temperature | 179°C
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| Maximum surface temperature | 427°C
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| Minimum surface temperature | -173°C
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Atmospheric compositionHeliumSodiumOxygen
Other
42%
42%
15%
1%
| |
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