Solar System Statistics

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by SpaceHike.com

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Categories Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
Moons --- 0 0 1 2 16 39 ? 15 8 1
Rings --- 0 0 0 0 1 1,000 ? 11 ? 4 0
Eccentricity of Orbit --- .206 .007 .017 .093 .048 .056 .046 .009 .248
Inclination of Orbit to Ecliptic --- 7 degs. 3.4 degs. 0degs. 1.85 degs. 1.3 degs. 2.5 degs. 0.8 degs. 1.8 degs. 17.1 degs.
Inclination of Axis ( any >90 degs. = retrograde rotation) 7.5 degs. Near 0 degs. 177.2 degs. 23 degs. 27' 25 degs. 12' 3 degs. 5' 26 degs. 44' 97 degs. 55' 28 degs. 48' 120 degs.
Period of Revolution --- 87.9 days 224.7 days 365.3 days 687 days 11.86 years 29.46 years 84 years 165 years 248 years
Rotation Period 26.8 days 58.9 days 243 days retograde 23 hrs. 56 min. 24 hrs. 37 min. 9 hrs. 55 min. 10 hrs. 40 min. 17 hrs. 12min. retrograde 16 hrs. 7 min. 6 days, 9 hrs. 18 min. retrograde
Atmosphere main components Hydrogen, Helium Almost none Carbon Dioxide Nitrogen, Oxygen Carbon Dioxide Hydrogen, Helium Hydrogen, Helium Hydrogen, Helium, Methane Hydrogen, Helium, Methane Methane + ?
Equatorial diameter (km) 1.39 million 4,880 12,100 12,756 6,786.8 143,200 120,000 51,800 49,528 ~2,330
Mean distance from Sun (millions of km's) --- 57.9 108.2 149.6 227.9 778.3 1,427 2,871 4,497 5,913

***Data used to create this table was taken from Couper, Heather and Nigel Henbest. Space Encyclopedia DK Publishing Book: NY, 1999; and Secrets of the Universe. International Master Publishing: US. 1999