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Encyclopedia > List of solar system objects by radius
List of solar system objects: By orbitBy massBy radiusBy nameBy surface gravity
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. Image File history File links Please see the file description page for further information. ... The Solar System consists of the Sun and the other celestial objects gravitationally bound to it: the eight planets, their 165 known moons,[1] three currently identified dwarf planets (Ceres, Eris, and Pluto) and their four known moons, and billions of small bodies. ... Below is a list of solar system objects with diameter >500km: The Sun, a spectral class G2 star Mercury Venus Earth Moon Mars Jupiter Io Europa Ganymede Callisto complete list of Jupiters natural satellites Saturn Tethys Dione Rhea Titan Iapetus complete list of Saturns natural satellites Uranus Ariel... This is a list of solar system objects by mass, in decreasing order. ... This is a list of named solar system objects, including planets, moons, dwarf planets, and trans-Neptunian objects, ordered alphabetically. ... The following values were calculated using Newtons law of universal gravitation. ... Major features of the Solar System (not to scale; from left to right): Pluto, Neptune, Uranus, Saturn, Jupiter, the asteroid belt, the Sun, Mercury, Venus, Earth and its Moon, and Mars. ... Remote Authentication Dial In User Service (RADIUS) is an AAA (authentication, authorization and accounting) protocol for applications such as network access or IP mobility. ... “Sol” redirects here. ... The eight planets and three dwarf planets of the Solar System. ... A natural satellite is an object that orbits a planet or other body larger than itself and which is not man-made. ...


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. This is a list of solar system objects by mass, in decreasing order. ... Adjectives: Uranian Atmosphere Surface pressure: 120 kPa (at the cloud level) Composition: 83% Hydrogen 15% Helium 1. ... Note: This article contains special characters. ... This article or section does not adequately cite its references or sources. ... Titan (, from Ancient Greek Τῑτάν) or Saturn VI is the largest moon of Saturn and the second largest moon in the solar system,[4] after Jupiters moon Ganymede. ... This article is about the planet. ...


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. A trans-Neptunian object (TNO) is any object in the solar system with all or most of its orbit beyond that of Neptune. ...


List

Rank Body Image Mean radius
(km)
Margin
of error
Mean radius
(R)
Volume
(109 km³)
Volume
(V)
1 Sun 696000 109.25 1412000000 1303781
2 Jupiter 69911 10.97 1431280 1321
3 Saturn 58232 9.14 827130 764
4 Uranus 25362 3.98 68340 63.1
5 Neptune 24622 3.87 62540 57.7
6 Earth 6371.0 1 1083.21 1
7 Venus 6051.8 0.950 928.43 0.857
8 Mars 3390.0 0.532 163.18 0.151
9 Ganymede 2631.2 0.413 76.30 0.0704
10 Titan 2575 0.404 71.52 0.0660
11 Mercury 2439.7 0.383 60.83 0.0562
12 Callisto 2410.3 0.378 58.65 0.0541
13 Io 1821.5 28.6% 25.32 2.34%
14 Moon 1737.1 27.3% 21.958 2.03%
15 Europa 1561 24.5% 15.93 1.47%
16 Triton 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%
(136472) 2005 FY9* 900 ±100 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* 745 ±155 9-14%
Iapetus 736 11.3% 1.55 0.14%
50000 Quaoar 630 ±95 8.4-11.4%
Charon 606 9.5% 0.87 0.09%
Umbriel 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 533 8.3% 0.624 0.06%
(84522) 2002 TC302* 532 ±62
Ceres 475 7.6% 0.437 0.04%
90482 Orcus* 473 ±36 6.9-8.0%
20000 Varuna* 445 ±65 8.3% 0.624 0.06%
(55637) 2002 UX25* 419
28978 Ixion 411 - 7.3% 0.421 0.038%
2002 MS4* 402 ±192
2003 MW12* 382 ?
2006 QH181* 382 ?
2004 XR190* 375 ±125
(145452) 2005 RN43* 365 ?
(24835) 1995 SM55* 352 ?
(55565) 2002 AW197* 350 ±25
(90568) 2004 GV9* 348 ?
(145453) 2005 RR43* 348 ?
2003 AZ84* 343
(120178) 2003 OP32* 333 ?
(42301) 2001 UR163* 318 ?
(84922) 2003 VS2* 318 ?
(15874) 1996 TL66* 316 ?
(55636) 2002 TX300* 310 ±45
(119951) 2002 KX14* 290 ?
2003 QW90* 290 ?
(120347) 2004 SB60* 290 ?
(145451) 2005 RM43* 290 ?
19521 Chaos* 280 ?
(120348) 2004 TY364* 277 ?
(19308) 1996 TO66* 270 ±105
4 Vesta 265 4.2% 0.078 0.007%
2 Pallas 265 4.2% 0.078 0.007%
2002 KW14* 264 ?
2004 PR107* 264 ?
(144897) 2004 UX10* 264 ?
Enceladus 252.1 3.9% 0.067 0.006%
(26375) 1999 DE9* 252 ?
2001 QF298* 252 ?
(145480) 2005 TB190* 252 ?
38628 Huya* 250 ±100
Miranda 235.8 3.7% 0.055 0.005%
2003 QX113* 230 ?
(35671) 1998 SN165* 229 ?
2000 CN105* 220 ?
2002 XV93* 220 ?
(120132) 2003 FY128* 220 ?
(82075) 2000 YW134* 216 ?
1999 CD158* 210 ?
2002 CY248 210 ?
(119979) 2002 WC19 210 ?
Proteus 209 3.3% 0.038 0.0035%
10 Hygiea 205 3.2% 0.036 0.003%
(47171) 1999 TC36* 205 ?
(26181) 1996 GQ21* 200 ?
2003 UZ117* 200 ?
2006 HH123* 200 ?
Mimas 198.3 3.1% 0.033 0.003%
Using equatorial radius and assuming body is spherical
Using three radii and assuming body is spheroid
  • Radius is known only very approximately
A relative comparison of some of the mid-sized bodies in the solar system.

km redirects here. ... The top portion of this graphic depicts probability densities (for a binomial distribution) that show the relative likelihood that the true percentage is in a particular area given a reported percentage of 50%. The bottom portion of this graphic shows the margin of error, the corresponding zone of 95% confidence. ... One thousand million (1,000,000,000) is the natural number following 999,999,999 and preceding 1,000,000,001. ... “Sol” redirects here. ... Image File history File links Sun920607. ... Adjectives: Jovian Atmosphere Surface pressure: 20–200 kPa[4] (cloud layer) Composition: ~86% Molecular hydrogen ~13% Helium 0. ... Download high resolution version (840x840, 41 KB) Original Caption Released with Image: This processed color image of Jupiter was produced in 1990 by the U.S. Geological Survey from a Voyager image captured in 1979. ... Adjectives: Saturnian Atmosphere Surface pressure: 140 kPa Composition: >93% hydrogen >5% helium 0. ... Image File history File links Saturn-cassini-March-27-2004. ... Adjectives: Uranian Atmosphere Surface pressure: 120 kPa (at the cloud level) Composition: 83% Hydrogen 15% Helium 1. ... Image File history File linksMetadata Uranus. ... Note: This article contains special characters. ... Image File history File links Download high resolution version (651x641, 42 KB) [[LinBold texthioyoihijhiohglmjjl;,hl;khkljblhgklbmyhgmklmjjhop[trp Original Caption Released with Image: During August 16 and 17, 1989, the Voyager 2 narrow-angle camera was used to photograph Neptune almost continuously, recording approximately two and one-half rotations of the... This article is about Earth as a planet. ... Image File history File linksMetadata Download high resolution version (3000x3002, 6358 KB) The Blue Marble: This photo is of Africa, Antarctica, and the Arabian Peninsula as taken en route to the Moon by Apollo 17s Harrison Schmitt on December 7, 1972. ... Adjectives: Venusian or (rarely) Cytherean Atmosphere Surface pressure: 9. ... Image File history File links Venus-real. ... Adjectives: Martian Atmosphere Surface pressure: 0. ... Image File history File links Download high resolution version (1023x1023, 585 KB) Saved at maximum quality JPEG from the original TIFF file. ... This article or section does not adequately cite its references or sources. ... Ganymede True Color Orbit 1 This is the only true color image of Ganymede acquired by Galileo spacecraft. ... Titan (, from Ancient Greek Τῑτάν) or Saturn VI is the largest moon of Saturn and the second largest moon in the solar system,[4] after Jupiters moon Ganymede. ... Image File history File linksMetadata Titan_in_natural_color_Cassini. ... This article is about the planet. ... Image File history File links No higher resolution available. ... There is also an asteroid named 204 Kallisto. ... Download high resolution version (740x753, 71 KB) This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... Atmosphere Surface pressure: trace Composition: 90% sulfur dioxide Io (eye-oe, IPA: , Greek Ῑώ) is the innermost of the four Galilean moons of Jupiter and, with a diameter of 3,642 kilometers, is the fourth largest moon in the Solar System. ... Image File history File links Download high-resolution version (2796x2796, 771 KB) Original Caption Released with Image: NASAs Galileo spacecraft acquired its highest resolution images of Jupiters moon Io on 3 July 1999 during its closest pass to Io since orbit insertion in late 1995. ... Apparent magnitude: up to -12. ... Download high resolution version (1986x1986, 393 KB) Wikipedia does not have an article with this exact name. ... Apparent magnitude: 5. ... Image File history File links Download high resolution version (913x913, 462 KB) [[Melanie is a cool moon my aunt found this moon and she is still living nnnnnnaaaaaaasssssssass[[Media:--~~~~Example. ... Triton (trye-tÉ™n, IPA: , Greek Τρίτων), or Neptune I, is the planet Neptunes largest moon. ... Image File history File linksMetadata No higher resolution available. ... Absolute magnitude: −1. ... Image File history File links Xenaandgabrielle. ... Adjectives: Plutonian Atmosphere Surface pressure: 0. ... Image File history File links Pluto. ... (also written (136472) 2005 FY9) is a very large Kuiper belt object discovered on March 31, 2005 by the team led by Michael Brown. ... Image File history File links No higher resolution available. ... Atmospheric pressure   Titania (ti-taan-ee-É™ or tye-tan-ee-É™) is the largest moon of Uranus. ... ImageMetadata File history File links Titania. ... Atmosphere none Rhea (ree-a, Greek ‘Ρέα) is the second largest moon of Saturn and was discovered in 1672 by Giovanni Domenico Cassini. ... Illustration for Rhea (moon) NASA image from Voyager 1 montage at http://grin. ... Atmospheric pressure 0 kPa Oberon (oe-bur-on) is the outermost of the major moons of the planet Uranus. ... Original Caption Released with Image: This Voyager 2 picture of Oberon is the best the spacecraft acquired of Uranus outermost moon. ... (also written (136108) 2003 EL61), nicknamed Santa, is a large Kuiper belt object, roughly one-third the mass of Pluto, discovered by Mike Browns group at Caltech in the United States and J. L. Ortiz et al. ... Image File history File links 2003EL61art. ... you are abunch of bull | bgcolour=#FFFFC0 | name=90377 Sedna | image= | caption= Sedna is located in the center of the green circle | discovery=yes | discoverer=M. Brown, C. Trujillo, D. Rabinowitz | discovered=November 14, 2003 | mp_name=90377 Sedna | alt_names= | mp_category=Trans-Neptunian object | epoch=September 26, 1990 (JD 2448160. ... Iapetus (eye-ap-É™-tÉ™s, IPA , Greek Ιαπετός) is the third-largest moon of Saturn, discovered by Giovanni Domenico Cassini in 1671. ... Wikipedia does not have an article with this exact name. ... 50000 Quaoar (pronounced kwaa·waar or kwow·ər, English IPA: , Tongva ) [2] is a Trans-Neptunian object orbiting the Sun in the Kuiper belt. ... Image File history File linksMetadata No higher resolution available. ... Charon (shair-É™n or kair-É™n (key), IPA , Greek Χάρων), discovered in 1978, is, depending on the definition employed, either the largest moon of Pluto or one member of a double dwarf planet with Pluto being the other member. ... Image File history File links No higher resolution available. ... Atmospheric pressure 0 kPa Umbriel (um-bree-É™l, IPA ) is a moon of Uranus discovered on 1851-10-24 by William Lassell. ... Image File history File links No higher resolution available. ... Atmospheric pressure 0 kPa Ariel (air-ee-É™l, IPA ) is a moon of Uranus discovered on 24 October 1851 by William Lassell. ... Download high resolution version (767x867, 47 KB)Original Caption Released with Image: This mosaic of the four highest-resolution images of Ariel represents the most detailed Voyager 2 picture of this satellite of Uranus. ... Atmosphere none Dione (dye-oe-nee, Greek Διώνη) is a moon of Saturn discovered by Giovanni Cassini in 1684. ... Download high resolution version (756x744, 35 KB)This picture of Dione was take by Voyager 1 from a range of 162,000 kilometers (100,600 miles) on November 12, 1980. ... Atmosphere none Tethys (tee-thÉ™s or teth-É™s, IPA , Greek Τηθύς) is a moon of Saturn that was discovered by Giovanni Domenico Cassini in 1684. ... Image File history File links Download high resolution version (1000x1000, 67 KB) Thethys (satellite of Saturn) imaged by the Cassini spacecraft. ... (84522) 2002TC302 is a large Scattered Disk Object (SDO), orbiting the sun at a distance of 39. ... Spectral type: G[8] Absolute magnitude: 3. ... Image File history File links Ceres_color. ... 90482 Orcus (originally known by the provisional designation 2004 DW) is a Kuiper Belt object (KBO) that was discovered by Michael Brown of Caltech, Chad Trujillo of the Gemini Observatory, and David Rabinowitz of Yale University. ... 20000 Varuna (VAR oo na) is a large classical Kuiper Belt object (KBO). ... Image File history File links No higher resolution available. ... The correct title of this article is (55637) 2002 UX25. ... 28978 Ixion (IPA pronunciation: , Wiktionary:Ixion) is a Kuiper belt object discovered on May 22, 2001. ... is a Trans-Neptunian object (TNO). ... 2003 MW12, also written 2003 MW12, is a trans-Neptunian object that is in the Kuiper belt. ... 2006 QH181, also written as 2006 QH181, is a trans-Neptunian object. ... 2004 XR190 (also written 2004 XR190) is a newly discovered trans-Neptunian object located in the scattered disc. ... (145452) 2005 RN43, also written as (145452) 2005 RN43, is a large trans-Neptunian object (TNO) orbiting beyond Pluto in the Kuiper belt. ... (24835) 1995 SM55, also written (24835) 1995 SM55, is a trans-Neptunian object (TNO) that resides in the Kuiper belt. ... (55565) 2002 AW197 is a trans-Neptunian object. ... (90568) 2004 GV9 (also written (90568) 2004 GV9) is a trans-Neptunian object. ... (145453) 2005 RR43, also written as (145453) 2005 RR43, is a trans-Neptunian object (TNO). ... , also written as 2003 AZ84, is a Trans-Neptunian object. ... (120178) 2003 OP32, also written as (120178) 2003 OP32,is a trans-Neptunian object (TNO) that resides in the Kuiper belt. ... (42301) 2001 UR163, also written as (42301) 2001 UR163, is a trans-Neptunian object (TNO) that resides in the extended Scattered disc. ... is a trans-Neptunian object discovered by the Near Earth Asteroid Tracking program on November 14, 2003. ... (15874) 1996 TL66 is a trans-Neptunian object that resides in the Kuyper belt. ... (55636) 2002 TX300 (Also written as (55636) 2002 TX300) is a large Trans-Neptunian object discovered in October 15, 2002 by the NEAT program. ... (119951) 2002 KX14, also written as 2002 KX14, is a trans-Neptunian object (TNO) residing within the Kuiper belt. ... 2003 QW90, also written as 2003 QW90, is a trans-Neptunian object (TNO) that resides in the Kuiper belt. ... (120347) 2004 SB60, also written as (120347) 2004 SB60, is a trans-Neptunian object that resides in the Kuiper belt. ... (145451) 2005 RM43, also written as (145451) 2005 RM43, is a trans-Neptunian object that resides in the scattered disc region beyond the Kuiper belt. ... 19521 Chaos (1998 WH24) is a cubewano, a Kuiper belt object not in resonance with any planet. ... (120348) 2004 TY364, also written as (120348) 2004 TY364, is a trans-Neptunian object that resides in the Kuiper belt. ... (also written (19308) 1996 TO66) is a trans-Neptunian object. ... 4 Vesta (ves-ta) is the second most massive asteroid in the asteroid belt, with a mean diameter of about 530 km and an estimated mass 12% the mass of the entire asteroid belt. ... Image File history File links Vesta-HST.jpg Description: A NASA Hubble Space Telescope image of the asteroid Vesta, taken in May 1996 when the asteroid was 175 million kilometers from Earth. ... 2 Pallas (pal-us, Greek Παλλάς) was the first asteroid discovered after 1 Ceres. ... [5] Atmospheric characteristics Pressure trace, significant spatial variability [6], [7] Water vapour 91% [8] Carbon dioxide 3. ... Download high resolution version (1004x1004, 93 KB) Wikipedia does not have an article with this exact name. ... (26375) 1999 DE9 (also written (26375) 1999 DE9) is an object of the solar system located beyond the orbit of Neptune. ... 2001 QF298, also written as 2001 QF298, is a trans-Neptunian object that resides in the Kuiper belt. ... 38628 Huya (original provisional designation: 2000 EB173) is a trans-Neptunian object. ... Miranda (IPA: ) is the smallest and innermost of Uranus major moons. ... Miranda, moon of Uranus. ... (35671) 1998 SN165, also written as (35671) 1998 SN165, is a trans-Neptunian object. ... (120132) 2003 FY128, also written as (120132) 2003 FY128, is a trans-Neptunian object. ... 2002 WC19, also written as 2002 WC19, is a Trans-Neptunian object orbiting beyond Pluto. ... Atmospheric pressure 0 kPa Proteus (proe-tee-us, Greek Πρωτέας) is one of Neptunes moons. ... Image File history File links Size of this preview: 597 × 600 pixel Image in higher resolution (836 × 840 pixel, file size: 41 KB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Proteus (moon) List... 10 Hygiea (hye-jee-a or hi-jee-a) is the fourth largest Main belt asteroid with a diameter of 407 km. ... Image File history File links No higher resolution available. ... (47171) 1999 TC36 (also written: (47171) 1999 TC36) is a trans-Neptunian object. ... (26181) 1996 GQ21, also written as (26181) 1996 GQ21, is a trans-Neptunian object that resides in the scattered disc region of the Solar System. ... Mimas (mee-mÉ™s or mye-mÉ™s, IPA: , Greek Μίμᾱς, rarely Μίμανς) is a moon of Saturn that was discovered in 1789 by William Herschel. ... Image File history File links Mimas, Saturns moon. ... Image File history File links Created using a program written by Nicholas Shanks. ... Mesoplanet is a term coined by Isaac Asimov to refer to planetary bodies with sizes smaller than Mercury but larger than 1 Ceres. ...

See also

A natural satellite is an object that orbits a planet or other body larger than itself and which is not man-made. ... Minor planets, or asteroids or planetoids, are minor celestial bodies of the Solar system orbiting the Sun (mostly Small solar system bodies) that are smaller than major planets, but larger than meteoroids (commonly defined as being 10 meters across or less[1]), and that are not comets. ... This table includes Solar Systems planets, dwarf planets and planetary-sized moons (larger than 1000 km in diameter)[1]. It accumulates information about planetary-sized bodies in the Solar system and their properties, focusing on those specific to planetary-sized objects and important for possible future solar system colonization. ...

External links


  Results from FactBites:
 
List of Solar system objects by radius - Wikipedia, the free encyclopedia (247 words)
For mostly spherical objects (oblate) such as planets and large planetoids, the equatorial radius is used.
While their radius remains provisional due to the recency of discovery, and is generally expressed as a range, the approximate locations in this list are shown.
Sol system objects arranged by diameter in metres.
CalendarHome.com - Solar system - Calendar Encyclopedia (4838 words)
In the outer regions of this solar nebula, ice and volatile gases were able to survive, and as a result, the inner planets are rocky and the outer planets were massive enough to attract large amounts of lighter gases, such as hydrogen and helium.
Asteroids are objects smaller than planets that mostly occupy the orbit between Mars and Jupiter, between 2.3 and 3.3 AU from the Sun, and are composed in significant part of non-volatile minerals.
The point at which the solar system ends and interstellar space begins is not precisely defined, since its outer boundaries are delineated by two separate forces: the solar wind and the Sun's gravity.
  More results at FactBites »

 
 

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