List of Solar system objects by radius

From Free net encyclopedia

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.

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List

Rank	Body	Image	Mean Radius (km)	Mean Radius (vs. Earth)	Volume (billion km³)	Volume (vs. Earth)
1	Sun	Image:The Sun w920607.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	Image:Saturn-cassini-March-27-2004.jpg	58,232	9.14	827,130	764
4	Uranus	Image:Uranus.jpg	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-pioneer-uv-black.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*	Image:Ganymede g1 true.jpg	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:Mercuryglobe1.jpg	2439.7	38.3%	60.83	5.62%
12	Callisto*	Image:Callisto.jpg	2410.3	37.8%	58.65	5.41%
13	Io*	Image:PIA02308.jpeg	1821.5	28.6%	25.32	2.34%
14	Moon	Image:Moon merged small.jpg	1737.1	27.3%	21.958	2.03%
	Europa*	Image:Europa-moon.jpg	1561	24.5%	15.93	1.47%
	Triton*	Image:Triton moon mosaic Voyager 2 (large).jpg	1353.4	21.2%	10.38	0.96%
	Template:Mpl***	Image:Xenaandgabrielle.jpg	1200 ± 50	19%	7.2	0.7%
	Pluto	Image:Pluto.jpg	1195	18.1%	6.39	0.59%
	Template:Mpl***		800-1000
	Titania**	Image:Titania.jpg	788.9	12.4%	2.06	0.19%
	Rhea**	Image:Rhea (moon) thumb.jpg	764	12.0%	1.87	0.17%
	Oberon*	Image:Oberon.jpg	761.4	12.0%	1.85	0.17%
	Template:Mpl***		~745 (980 x 759 x 498)
	90377 Sedna***		590-900
	Iapetus*	Image:Iapetus by Voyager 2 - enhanced.jpg	718	11.3%	1.55	0.14%
	90482 Orcus***		420-940
	Charon*		593	9.3%	0.87	0.08%
	Umbriel*	Image:Umbriel (moon).jpg	584.7	9.2%	0.84	0.08%
	50000 Quaoar*		495-673
	Ariel**	Image:Ariel (moon).jpg	578.9	9.1%	0.81	0.08%
	Dione*	Image:Dione.jpg	560	8.8%	0.73	0.07%
	Tethys**	Image:Tethys cassini.jpg	530	8.3%	0.624	0.06%
	20000 Varuna*		530	8.3%	0.624	0.06%
	2002 AW197***		485
	1 Ceres**	Image:Ceres Hubble sing.jpg	475	7.6%	0.437	0.04%
	28978 Ixion*		465	7.3%	0.421	0.038%
	2002 UX₂₅***		~450
	2004 XR₁₉₀***		250-500
	15874 1996 TL₆₆***		~316
	19521 Chaos***		~280
	4 Vesta**	Image:Vesta-HST.jpg	265	4.2%	0.078	0.007%
	2 Pallas**		265	4.2%	0.078	0.007%
	Enceladus**	Image:Enceladus from Voyager.jpg	252.1	3.9%	0.067	0.006%
	38628 Huya***		150-350
	Miranda**	Image:Miranda.jpg	235.8	3.7%	0.055	0.005%
	Proteus**	Image:Proteus (Voyager 2).jpg	209	3.3%	0.038	0.0035%
	10 Hygiea**		205	3.2%	0.036	0.003%
	Mimas**	Image:Mimas moon.jpg	198.6	3.1%	0.033	0.003%