Planetary attributes

	Name	Equatorial diameter[a]	Mass[a]	Orbital radius (AU)	Orbital period (years)[a]	Inclination to Sun's equator (°)	Orbital eccentricity	Rotation period (days)	Named moons[c]	Rings	Atmosphere
Terrestrials	Mercury	0.382	0.06	0.39	0.24	3.38	0.206	58.64	0	no	minimal
	Venus	0.949	0.82	0.72	0.62	3.86	0.007	−243.02	0	no	CO2, N2
	Earth[b]	1.00	1.00	1.00	1.00	7.25	0.017	1.00	1	no	N2, O2
	Mars	0.532	0.11	1.52	1.88	5.65	0.093	1.03	2	no	CO2, N2
Gas giants	Jupiter	11.209	317.8	5.20	11.86	6.09	0.048	0.41	49	yes	H2, He
	Saturn	9.449	95.2	9.54	29.46	5.51	0.054	0.43	52	yes	H2, He
	Uranus	4.007	14.6	19.22	84.01	6.48	0.047	−0.72	27	yes	H2, He
	Neptune	3.883	17.2	30.06	164.8	6.43	0.009	0.67	13	yes	H2, He
Dwarf planets
	Ceres	0.08	0.000 2	2.5–3.0	4.60	10.59	0.080	0.38	0	no	none
	Pluto	0.19	0.002 2	29.7–49.3	248.09	17.14	0.249	−6.39	3	no	temporary
	Haumea	0.37×0.16	0.000 7	35.2–51.5	282.76	28.19	0.189	0.16	2
	Makemake	~0.12	0.000 7	38.5–53.1	309.88	28.96	0.159	?	0	?	? [d]
	Eris	0.19	0.002 5	37.8–97.6	~557	44.19	0.442	~0.3	1	?	? [d]
a Measured relative to the Earth. b See Earth article for absolute values. c Jupiter has the most secured satellites (63) in the solar system.[74] d Like Pluto, when near perihelion, a temporary atmosphere is suspected.