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Planets (+ Pluto): physical data
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|
Planet
|
Equatorial
diameter (km) a, b |
Mass
(Earth = 1) |
Volume
(Earth = 1) |
Mean
density (water = 1) |
Oblateness
|
Surface
gravity b (Earth = 1) |
Escape
velocity km/s |
Geometrical
albedo |
Colour
index B–V |
|
Mercury
|
4879
|
000.06
|
0000.06
|
5.43
|
0
|
0.378
|
4.25
|
0.11
|
0.93
|
|
Venus
|
12 104
|
000.82
|
0000.86
|
5.24
|
0
|
0.907
|
10.36
|
0.65
|
0.82
|
|
Earth
|
12 756
|
001.00
|
0001.00
|
5.52
|
0.0034
|
1.000
|
11.19
|
0.37
|
—
|
|
Mars
|
6792
|
000.11
|
0000.15
|
3.94
|
0.0059
|
0.377
|
5.03
|
0.15
|
1.36
|
|
Jupiter
|
142 984
|
317.83
|
1321
|
1.33
|
0.065
|
2.364
|
60.2
|
0.52
|
0.83
|
|
Saturn
|
120 536
|
095.16
|
0764
|
0.69
|
0.098
|
0.916
|
35.1
|
0.47
|
1.04
|
|
Uranus
|
51 118
|
014.54
|
0063
|
1.27
|
0.023
|
0.889
|
21.4
|
0.51
|
0.56
|
|
Neptune
|
49 528
|
017.15
|
0058
|
1.64
|
0.017
|
1.125
|
23.6
|
0.41
|
0.41
|
|
Pluto
|
2390
|
000.0022
|
0000.0066
|
1.8
|
0
|
0.067
|
1.2
|
0.3
|
0.80
|
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a Polar diameters: Earth 12 714 km, Mars 6752 km, Jupiter 133 708 km, Saturn 108 728 km, Uranus 49
946 km, Neptune 48 682 km.
b At the 1-bar level in the atmosphere for Jupiter, Saturn, Uranus and Neptune.
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