Table of planets and dwarf planets in the Solar System

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A table summarizing features of the planets and dwarf planets in the Solar System.

Mercury Venus Earth Mars Ceres [1] Jupiter Saturn Uranus Neptune Pluto [1] Eris [1]
Astronomical symbol Mercury Venus Earth Mars Ceres Jupiter Saturn Uranus Neptune Pluto
Mean distance
from Sun		 km
AU		 57,909,175
0.38709893		 108,208,930
0.72333199		 149,597,870
1		 227,936,640
1.52366231		 413,715,000
2.766		 778,412,010
5.20336301		 1,426,725,400
9.53707032		 2,870,972,200
19.19126393		 4,498,252,900
30.06896348		 5,906,376,200
39.48168677		 10,210 million 
67.6681
Mean radius km
:E[2]		 2,439.64
0.3825		 6,051.59
0.9488		 6,378.15
1		 3,397.00
0.53226		 471
0.0738		 71,492.68
11.209		 60,267.14
9.449		 25,557.25
4.007		 24,766.36
3.883		 1,148.07
0.180		 1,200
0.19
Volume km3
:E[2]		 6.083×1010
0.056		 9.28×1011
0.87		 1.083×1012
1		 1.6318×1011
0.151		  ?×108
0.00042		 1.431×1015
1,321.3		 8.27×1014
763.59		 6.834×1013
63.086		 6.254×1013
57.74		 7.15×109
0.0066		  ?×109
0.007
Mass kg
:E[2]		 3.302×1023
0.055		 4.8690×1024
0.815		 5.9742×1024
1		 6.4191×1023
0.107		 9.5×1020
0.00016		 1.8987×1027
318		 5.6851×1026
95		 8.6849×1025
14		 1.0244×1026
17		 1.3×1022
0.0022
Density g/cm3 5.43 5.24 5.515 3.940 2.08 1.33 0.70 1.30 1.76 2.0
Equatorial gravity m/s2 3.70 8.87 9.81 3.71 0.27 23.12 8.96 8.69 11.00 0.60
Escape velocity km/s 4.25 10.36 11.18 5.02 0.51 59.54 35.49 21.29 23.71 1.2
Rotation period days[3] 58.646225 -243.0187[4] 0.99726968 1.02595675 0.3781 0.41354 0.44401 -0.71833[4] 0.67125 -6.38718[4]
Orbital period years[3] 0.2408467 0.61519726 1.0000174 1.8808476 4.599 11.862615 29.447498 84.016846 164.79132 247.92065 557
Mean orbital speed km/s 47.8725 35.0214 29.7859 24.1309 17.882 13.0697 9.6724 6.8352 5.4778 4.7490 3.436
Eccentricity 0.20563069 0.00677323 0.01671022 0.09341233 0.080 0.04839266 0.05415060 0.04716771 0.00858587 0.24880766 0.44177
Inclination deg. 7.00487 3.39471 0.00005 1.85061 10.587 1.30530 2.48446 0.76986 1.76917 17.14175 44.187
Axial tilt[5] deg. 0.0 177.3 23.45 25.19 4 3.12 26.73 97.86 29.58 119.61
Mean surface temp. K 440 730 288-293 186-268 167 152 40 30
Mean air temp.[6] K 288 165 135 76 73
Atmospheric composition CO2  N2 N2  O2 CO2  N2  Ar H2  He H2  He H2  He  CH4 H2  He  CH4
Number of moons 0 0 1 2 0 63 56 27 13 3 1
Rings? No No No No No Yes Yes Yes Yes No No
Planetary discriminant[7] 9.1×104 1.35×106 1.7×106 1.8×105 0.33 6.25×105 1.9×105 2.9×104 2.4×104 7.7×10−2 0.10

[edit] Notes

  1. ^ a b c Names in italics indicate dwarf planets. For more information about the 2006 reclassification of Pluto, Ceres and Eris as dwarf planets, see 2006 redefinition of planet.
  2. ^ a b c relative to Earth.
  3. ^ a b sidereal.
  4. ^ a b c retrograde orbit.
  5. ^ The inclination of the body's equator from its orbit.
  6. ^ At sea level.
  7. ^ Used to distinguish between planet and dwarf planet.

[edit] See also


 v • d • e The Solar System
The Sun Mercury Venus The Moon Earth Phobos and Deimos Mars Ceres The asteroid belt Jupiter Jupiter's natural satellites Saturn Saturn's natural satellites Uranus Uranus' natural satellites Neptune's natural satellites Neptune Charon, Nix, and Hydra Pluto The Kuiper belt Dysnomia Eris The scattered disc The Oort cloud
The Sun · Mercury · Venus · Earth · Mars · Ceres · Jupiter · Saturn · Uranus · Neptune · Pluto · Eris
Planets · Dwarf planets · Moons: Terrestrial · Martian · Asteroidal · Jovian · Saturnian · Uranian · Neptunian · Plutonian · Eridian
Small bodies:   Meteoroids · Asteroids (Asteroid belt) · Centaurs · TNOs (Kuiper belt/Scattered disc) · Comets (Oort cloud)
See also astronomical objects, the solar system's list of objects, sorted by radius or mass, and the Astronomy Portal
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