Properties of the planets of the solar system
last updated 5 February 2004
| planet | equatorial radius | mass | average density | surface gravity | escape velocity | sidereal period of rotation | inclination of equator to orbit |
|---|
| km | Earth=1 | Earth=1 | g/cm3 | Earth=1 | km/s |
|---|
| Mercury | 2440 | 0.383 | 0.0553 | 5.427 | 0.378 | 4.4 | 58d 15h 31m | 0°05' |
| Venus | 6052 | 0.949 | 0.8150 | 5.204 | 0.907 | 10.4 | 243d 00h 27m | 177°18' |
| Earth | 6378 | 1.000 | 1.0000 | 5.515 | 1.000 | 11.2 | 23h 56m 04.1s | 23°26' |
| Mars | 3394 | 0.532 | 0.1074 | 3.934 | 0.377 | 5.0 | 24h 37m 22.7s | 25°11' |
| Jupiter | 71398 | 11.194 | 317.8284 | 1.326 | 2.364 | 59.5 | 9h 55m 27s | 3°07' |
| Saturn | 60330 | 9.459 | 95.1609 | 0.687 | 1.064 | 35.5 | 10h 39m 22s | 26°44' |
| Uranus | 26200 | 4.108 | 14.5357 | 1.318 | 0.889 | 21.3 | 17h 14m | 97°52' |
| Neptune | 25225 | 3.955 | 17.1478 | 1.638 | 1.125 | 23.5 | 16h 07m | 29°34' |
| Pluto | 1175 | 0.183 | 0.0021 | 1.86 | 0.067 | 1.3 | 6d 09h 17m | 122° |
| planet | semimajor axis | orbital period | average orbital velocity | orbital eccentricity | orbital inclination |
|---|
| AU | 106 km | yr | days | km/s |
|---|
| Mercury | 0.3871 | 57.9 | 0.24084 | 87.968 | 47.87 | 0.2056 | 7°00'18" |
| Venus | 0.7233 | 108.2 | 0.61519 | 224.702 | 35.02 | 0.0068 | 3°23'40" |
| Earth | 1.0000 | 149.6 | 1.00000 | 365.256 | 29.79 | 0.0167 | 0°00'00" |
| Mars | 1.5237 | 227.9 | 1.88081 | 686.978 | 24.12 | 0.0934 | 1°50'59" |
| Jupiter | 5.2028 | 778.3 | 11.8616 | 4332.53 | 13.06 | 0.0485 | 1°18'12" |
| Saturn | 9.5428 | 1427.6 | 29.4609 | 10760.78 | 9.65 | 0.0555 | 2°29'20" |
| Uranus | 19.1921 | 2871.1 | 84.0241 | 30690.34 | 6.80 | 0.0463 | 0°46'24" |
| Neptune | 30.0689 | 4498.2 | 164.7734 | 60184.5 | 5.44 | 0.009 | 1°46'12" |
| Pluto | 39.4817 | 5906.4 | 247.92 | 90554 | 4.74 | 0.2488 | 17°08'30" |
© 2001-2003, 2004 by Wm. Robert Johnston.
Last modified 5 February 2004.
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