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Planetary Facts

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Planetary Fact Sheet - Metric
   MERCURY   VENUS   EARTH   MOON   MARS   JUPITER   SATURN   URANUS   NEPTUNE   PLUTO 
Mass (1024kg) 0.33 4.87 5.97 0.073 0.642 1899 568 86.8 102 0.0125
Diameter (km) 4879 12,104 12,756 3475 6794 142,984 120,536 51,118 49,528 2390
Density (kg/m3) 5427 5243 5515 3340 3933 1326 687 1270 1638 1750
Gravity (m/s2) 3.7 8.9 9.8 1.6 3.7 23.1 9 8.7 11 0.6
Escape Velocity (km/s) 4.3 10.4 11.2 2.4 5 59.5 35.5 21.3 23.5 1.1
Rotation Period (hours) 1407.6 -5832.5 23.9 655.7 24.6 9.9 10.7 -17.2 16.1 -153.3
Length of Day (hours) 4222.6 2802 24 708.7 24.7 9.9 10.7 17.2 16.1 153.3
Distance from Sun (106 km) 57.9 108.2 149.6 0.384* 227.9 778.6 1433.5 2872.5 4495.1 5870
Perihelion (106 km) 46 107.5 147.1 0.363* 206.6 740.5 1352.6 2741.3 4444.5 4435
Aphelion (106 km) 69.8 108.9 152.1 0.406* 249.2 816.6 1514.5 3003.6 4545.7 7304.3
Orbital Period (days) 88 224.7 365.2 27.3 687 4331 10,747 30,589 59,800 90,588
Orbital Velocity (km/s) 47.9 35 29.8 1 24.1 13.1 9.7 6.8 5.4 4.7
Orbital Inclination (degrees) 7 3.4 0 5.1 1.9 1.3 2.5 0.8 1.8 17.2
Orbital Eccentricity 0.205 0.007 0.017 0.055 0.094 0.049 0.057 0.046 0.011 0.244
Axial Tilt (degrees) 0.01 177.4 23.5 6.7 25.2 3.1 26.7 97.8 28.3 122.5
Mean Temperature (C) 167 464 15 -20 -65 -110 -140 -195 -200 -225
Surface Pressure (bars) 0 92 1 0 0.01 Unknown* Unknown* Unknown* Unknown* 0
Number of Moons 0 0 1 0 2 63 47 27 13 1
Ring System? No No No No No Yes Yes Yes Yes No
Global Magnetic Field? Yes No Yes No No Yes Yes Yes Yes Unknown
   MERCURY   VENUS   EARTH   MOON   MARS   JUPITER   SATURN   URANUS   NEPTUNE   PLUTO