List of solar system objects by radius

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List of solar system objects: By orbit—By mass—By radius

See also: Solar system

This is a list of solar system objects by radius, arranged in descending order of mean volumetric radius. This list is not exhaustive; it contains the Sun, the planets, several natural satellites, and a number of other notable objects.

The ordering is not the same as the order of a list of solar system objects by mass because some objects are denser than others. For instance Uranus is bigger than Neptune but less massive, and although Ganymede and Titan are larger than Mercury, they have less than half its mass.

Several new trans-Neptunian objects have been discovered of significant size. While their radius remains provisional due to the recency of discovery, and is often expressed as a range, the approximate locations in this list are shown.

[edit] List

Rank	Body	Image	Mean Radius (km)	Mean Radius (vs. Earth)	Volume (billion km³)	Volume (vs. Earth)
1	Sun	Image:Sun920607.jpg	696,000	109.25	1412 million	1,303,781
2	Jupiter	Image:Jupiter.jpg	69,911	10.97	1,431,280	1321
3	Saturn		58,232	9.14	827,130	764
4	Uranus		25,362	3.98	68,340	63.1
5	Neptune	Image:Neptune.jpg	24,622	3.87	62,540	57.7
6	Earth	Image:The Earth seen from Apollo 17.jpg	6371.0	1	1083.21	1
7	Venus	Image:Venus-real.jpg	6051.8	95.0%	928.43	85.7%
8	Mars	Image:Mars Valles Marineris.jpeg	3390.0	53.2%	163.18	15.1%
9	Ganymede*		2631.2	41.3%	76.30	7.04%
10	Titan*	Image:Titan in natural color Cassini.jpg	2575	40.4%	71.52	6.60%
11	Mercury	Image:Reprocessed Mariner 10 image of Mercury.jpg	2439.7	38.3%	60.83	5.62%
12	Callisto*		2410.3	37.8%	58.65	5.41%
13	Io*	Image:Io highest resolution true color.jpg	1821.5	28.6%	25.32	2.34%
14	Moon	Image:Full moon.jpeg	1737.1	27.3%	21.958	2.03%
15	Europa*	Image:Europa-moon.jpg	1561	24.5%	15.93	1.47%
16	Triton*	Image:Triton Voyager 2.jpg	1353.4	21.2%	10.38	0.96%
17	Eris***		1200 ± 50	19%	7	0.7%
18	Pluto		1153	18.1%	6.39	0.59%
19	(136472) 2005 FY₉***		800-1000	12.6-15.7%
	Titania**		788.9	12.4%	2.06	0.19%
	Rhea**		764.4	12.0%	1.87	0.17%
	Oberon*		761.4	12.0%	1.85	0.17%
	(136108) 2003 EL₆₁***		~745 (980 x 759 x 498)	11.7%
	90377 Sedna***		590-900	9-14%
	Iapetus*	Image:Iapetus by Voyager 2 - enhanced.jpg	736	11.3%	1.55	0.14%
	2002 MS₄***		~693	10.8%
	90482 Orcus***		420-940	6.6-14.8%
	50000 Quaoar*		535-725	8.4-11.4%
	Charon*	Image:Charon plutoface.png	606	9.5%	0.87 93	0.09%
	Umbriel*	Image:Umbriel moon 1.gif	584.7	9.2%	0.84	0.08%
	Ariel**		578.9	9.1%	0.81	0.08%
	Dione*		561.6	8.8%	0.73	0.07%
	Tethys**	Image:Tethys cassini.jpg	533	8.3%	0.624	0.06%
	2002 TC₃₀₂***		<600
	Ceres**	Image:Ceres color.png	475	7.6%	0.437	0.04%
	1996 TO₆₆***		~472
	2002 UX₂₅***		~450
	2002 TX₃₀₀***		<450
	20000 Varuna***		380-510	8.3%	0.624	0.06%
	28978 Ixion*		<411	7.3%	0.421	0.038%
	2003 MW₁₂***		~382
	2004 XR₁₉₀***		250-500
	2003 AZ₈₄***		~365
	1995 SM₅₅***		~352
	2002 AW197***		375 - 325
	2004 GV₉***		~348
	2003 OP₃₂***		~333
	2001 UR₁₆₃***		~318
	2003 VS₂***		~318
	15874 1996 TL₆₆***		~316
	2002 KX₁₄***		~290
	2003 QW₉₀***		~290
	2004 SB₆₀***		~290
	2005 RM₄₃***		~290
	19521 Chaos***		~280
	2004 TY₃₆₄***		~277
	4 Vesta**	Image:Vesta-HST.jpg	265	4.2%	0.078	0.007%
	2 Pallas**		265	4.2%	0.078	0.007%
	2002 KW₁₄***		~264
	2004 PR₁₀₇***		~264
	Enceladus**	Image:Enceladus from Voyager.jpg	252.1	3.9%	0.067	0.006%
	1999 DE₉***		~252
	2001 QF₂₉₈***		~252
	2004 UX₁₀***		~252
	2005 TB₁₉₀***		~252
	38628 Huya***		150-350
	Miranda**		235.8	3.7%	0.055	0.005%
	2003 QX₁₁₃***		~230
	2000 CN₁₀₅***		~220
	2002 XV₉₃***		~220
	2003 FY₁₂₈***		~220
	2000 YW₁₃₄***		~216
	1999 CD₁₅₈***		~210
	2002 CY₂₄₈***		~210
	2002 WC₁₉***		~210
	Proteus**	Image:Proteus (Voyager 2).jpg	209	3.3%	0.038	0.0035%
	10 Hygiea**		205	3.2%	0.036	0.003%
	1999 TC₃₆***		~205
	1996 GQ₂₁***		~200
	2003 UZ₁₁₇***		~200
	2006 HH₁₂₃***		~200
	Mimas**		198.3	3.1%	0.033	0.003%