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'.

Contents

Planets

Dwarf planets

Notes

See also

Planets

		Mercury	Venus	Earth	Mars	Jupiter	Saturn	Uranus	Neptune
Astronomical symbol		Mercury	Venus	Earth	Mars	Jupiter	Saturn	Uranus	Neptune
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	778,412,010 5.20336301	1,426,725,400 9.53707032	2,870,972,200 19.19126393	4,498,252,900 30.06896348
Mean radius	km :E[1]	2,439.64 0.3825	6,051.59 0.9488	6,378.15 1	3,397.00 0.53226	71,492.68 11.209	60,267.14 9.449	25,557.25 4.007	24,766.36 3.883
Surface area	km² :E	75,000,000 0.1471	460,000,000 0.9010	510,000,000 1	140,000,000 0.2745	64,000,000,000 125.5	44,000,000,000 86.27	8,100,000,000 15.88	7,700,000,000 15.10
Volume	km3 :E	6.083 0.056	9.28 0.87	1.083 1	1.6318 0.151	1.431 1,321.3	8.27 763.59	6.834 63.086	6.254 57.74
Mass	kg :E	3.302 0.055	4.8690 0.815	5.9742 1	6.4191 0.107	1.8987 318	5.6851 95	8.6849 14	1.0244 17
Density	g/cm3	5.43	5.24	5.515	3.940	1.33	0.70	1.30	1.76
Equatorial gravity	m/s2	3.70	8.87	9.81	3.71	23.12	8.96	8.69	11.00
Escape velocity	km/s	4.25	10.36	11.18	5.02	59.54	35.49	21.29	23.71
Rotation period	days[2]	58.646225	-243.0187[3]	0.99726968	1.02595675	0.41354	0.44401	-0.71833	0.67125
Orbital period	years	0.2408467	0.61519726	1.0000174	1.8808476	11.862615	29.447498	84.016846	164.79132
Mean orbital speed	km/s	47.8725	35.0214	29.7859	24.1309	13.0697	9.6724	6.8352	5.4778
Eccentricity		0.20563069	0.00677323	0.01671022	0.09341233	0.04839266	0.05415060	0.04716771	0.00858587
Inclination	deg.	7.00487	3.39471	0.00005	1.85061	1.30530	2.48446	0.76986	1.76917
Axial tilt[4]	deg.	0.0	177.3	23.45	25.19	3.12	26.73	97.86	29.58
Mean surface temp.	K	440	730	288-293	186-268	152
Mean air temp.[5]	K			288		165	135	76	73
Atmospheric composition		He  Na+  P+	CO2  N2	N2  O2	CO2  N2  Ar	H2  He	H2  He	H2  He  CH4	H2  He  CH4
Number of moons		0	0	1	2	63	57	27	13
Rings?		No	No	No	No	Yes	Yes	Yes	Yes
Planetary discriminant[6]		9.1	1.35	1.7	1.8	6.25	1.9	2.9	2.4

Dwarf planets

		'' [7]	''	''
Astronomical symbol		Ceres	Pluto
Mean distance from Sun	km AU	413,715,000 2.766	5,906,376,200 39.48168677	10,210 million  67.6681
Mean radius	km :E	471 0.0738	1,148.07 0.180	1,200 0.19
Volume	km3 :E	2,800,000 0.0055	17,000,000 0.0333	18,000,000 0.0353
Surface area	km² :E	? 0.00042	7.15 0.0066	? 0.007
Mass	kg :E	9.5 0.00016	1.3 0.0022	1.7 0.0028
Density	g/cm3	2.08	2.0
Equatorial gravity	m/s2	0.27	0.60
Escape velocity	km/s	0.51	1.2
Rotation period	days	0.3781	-6.38718
Orbital period	years	4.599	247.92065	557
Mean orbital speed	km/s	17.882	4.7490	3.436
Eccentricity		0.080	0.24880766	0.44177
Inclination	deg.	10.587	17.14175	44.187
Axial tilt	deg.	4	119.61
Mean surface temp.	K	167	40	30
Mean air temp.	K
Atmospheric composition			CH4
Number of moons		0	3	1
Rings?		No	No	No
Planetary discriminant		0.33	7.7	0.10

Notes

1. relative to Earth.
2. sidereal.
3. retrograde orbit.
4. The inclination of the body's equator from its orbit.
5. At sea level.
6. Used to distinguish between planet and dwarf planet.
7. 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.

See also

★ Planet

★ Dwarf planet

★ 2006 redefinition of planet

★ Definition of a planet

★ List of solar system bodies formerly considered planets

★ Planets in astrology