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List of Solar System objects by size

This is a partial list of Solar System objects by size, arranged in descending order of mean volumetric radius, and subdivided into several size classes. These lists can also be sorted according to an object's mass and, for the largest objects, volume, density and surface gravity, insofar as these values are available. This list contains the Sun, the planets, dwarf planets, many of the larger small Solar System bodies (which includes the asteroids), all named natural satellites, and a number of smaller objects of historical or scientific interest, such as comets and near-Earth objects.

The ordering may be different depending on whether one chooses radius or mass, because some objects are denser than others. For instance, Uranus is larger than Neptune but less massive, and although Ganymede and Titan are larger than Mercury, they have less than half Mercury's mass. This means some objects in the lower tables, despite their smaller radii, may be more massive than objects in the upper tables because they have a higher density.

Many trans-Neptunian objects (TNOs) have been discovered, and their approximate locations in this list are shown, even though there can be a large uncertainty in their measurement.

Solar System objects more massive than 1021 kilograms (one yottagram [Yg]) are known or expected to be approximately spherical. Astronomical bodies relax into rounded shapes (ellipsoids), achieving hydrostatic equilibrium, when the gravity of their mass is sufficient to overcome the structural strength of their material. Objects made of ice become round more easily than those made of rock, and many icy objects are spheroidal at far lower sizes. The cutoff boundary for roundness is somewhere between 100 km and 200 km in radius.[1]

The larger objects in the mass range between 1018 kg to 1021 kg (1 to 1000 zettagrams [Zg]), such as Tethys, Ceres, and Mimas, have relaxed to an oblate-spheroid equilibrium due to their gravity, whereas the less massive rubble piles (e.g. Amalthea and Janus) are roughly rounded, but not spherical, dubbed "irregular".

Spheroidal bodies typically have some polar flattening due to the centrifugal force from their rotation, and can sometimes even have quite different equatorial diameters (scalene ellipsoids such as Haumea). Unlike bodies such as Haumea, the irregular bodies deviate significantly from the shape of an ellipsoid.

There can be difficulty in determining the diameter (within a factor of about 2) for typical objects beyond Saturn. (See 2060 Chiron as an example.) For TNOs there is some confidence in the diameters, but for non-binary TNOs there is no real confidence in the masses/densities. Many TNOs are often just assumed to have Pluto's density of 2.0 g/cm3, but it is just as likely that they have a comet-like density of only 0.5 g/cm3.[2] For example, if a TNO is poorly assumed to have a mass of 3.59×1020 kg based on a radius of 350 km with a density of 2 g/cm3 and is later discovered to only have a radius of 175 km with a density of 1 g/cm3, the mass estimate would be only 2.24×1019 kg.

The sizes and masses of many of the moons of Jupiter and Saturn are fairly well known due to numerous observations and interactions of the Galileo and Cassini orbiters. But many of the moons with a radius less than ~100 km, such as Jupiter's Himalia, their masses are highly uncertain.[3] Further out from Saturn, the sizes and masses of objects are less clear. There has not yet been an orbiter around Uranus or Neptune for long-term study of their moons. For the small outer irregular moons of Uranus, such as Sycorax, which were not discovered by the Voyager 2 flyby, even different NASA web pages, such as the National Space Science Data Center[4] and JPL Solar System Dynamics,[3] have somewhat contradictory size and albedo estimates depending on which research paper is being cited.

Data for objects has varying reliability including uncertainties in the figures for mass and radius, and irregularities in the shape and density, with accuracy often depending on how close it is to Earth or whether it has been visited by a probe.

Relative sizes of the fifty largest bodies in the Solar System, colored by orbital region. Values are diameters in kilometers. Scale is logarithmic.

Contents

Graphical overviewEdit

List of objects by radiusEdit

Larger than 400 kmEdit

It was once expected that any icy body larger than approximately 200 km in radius was likely to be in hydrostatic equilibrium (HE).[5] However, Rhea is the smallest body where detailed measurements have been made and are consistent with hydrostatic equilibrium,[6] whereas Iapetus is the largest determined not to be in hydrostatic equilibrium,[7] bracketing a radius of 750 km.

For simplicity and comparative purposes, the values are manually calculated assuming a sphericity of 1. The size of solid bodies does not include an object's atmosphere. For example, Titan looks bigger than Ganymede, but its solid body is smaller. For the giant planets, the "radius" is the point at which the atmosphere reaches 1 bar of atmospheric pressure.[8] The radius of Saturn's main rings is 136,775 km.

Body[note 1] Image Radius[note 2] Volume Mass Density Gravity[note 3] Type Shape #[note 4]
(km) (R) (109 km3) (V) (1021 kg) (M) (g/cm3) (m/s2) ()
Sun 696342±65[9] 109.3 1,414,300,000 1,305,700 1,988,550,000 333,000 1.408 274.0 27.94 star round (HE) 1
Jupiter 69911±6 10.97 1,431,280 1,321 1,898,600 317.83 1.326 24.79 2.528 planet (gas giant); has rings round (HE) 2
Saturn 58232±6
(w/o rings)
9.140 827,130 764 568,460 95.162 0.687 10.445 1.065 planet (gas giant); has rings round (HE) 3
Uranus 25362±7 3.981 68,340 63.1 86,832 14.536 1.27 8.69 0.90 planet (ice giant); has rings round (HE) 4
Neptune 24622±19 3.865 62,540 57.7 102,430 17.147 1.638 11.15 1.137 planet (ice giant); has rings round (HE) 5
Earth 6371.0±0.01 1 1,083.21 1 5,973.6 1 5.514 9.80665 1 planet (terrestrial) round (HE) 6
Venus 6051.8±1.0
(w/o gas)
0.9499 928.43 0.857 4,868.5 0.815 5.243 8.872 0.905 planet (terrestrial) round (HE) 7
Mars 3389.5±0.2 0.5320 163.18 0.151 641.85 0.107 3.9335 ± 0.0004 3.7 0.38 planet (terrestrial) round (HE) 8
Ganymede
Jupiter III
2634.1±0.3 0.4135 76.30 0.0704 148.2 0.0248 1.936 1.428 0.15 moon of Jupiter round (HE) 9
Titan
Saturn VI
2574.73±0.09
(w/o gas)[a]
0.4037[a] 71.50 0.0658 134.5 0.0225 1.8798 ± 0.0044 1.354 0.14 moon of Saturn round (HE) 10
Mercury 2439.7±1.0 0.3829 60.83 0.0562 330.2 0.0553 5.427 3.7 0.38 planet (terrestrial) round (HE) 11
Callisto
Jupiter IV
2410.3±1.5 0.3783 58.65 0.0541 107.6 0.018 1.8344 ± 0.0034 1.23603 0.126 moon of Jupiter round (HE) 12
Io
Jupiter I
1821.6±0.5 0.2859 25.32 0.0234 89.3 0.015 3.528 ± 0.006 1.797 0.183 moon of Jupiter round (HE) 13
Moon
Earth I
1737.1 0.2727 21.958 0.0203 73.5 0.0123 3.3464 1.625 0.166 moon of Earth round (HE) 14
Europa
Jupiter II
1560.8±0.5 0.2450 15.93 0.0147 48 0.008035 3.013 ± 0.005 1.316 0.134 moon of Jupiter round (HE) 15
Triton
Neptune I
1353.4±0.9[a] 0.2124[a] 10.38 0.0096 21.5 0.003599 2.061 0.782 0.0797 moon of Neptune round (HE) 16
Pluto
134340
1188.3±1.6[10] 0.186 7.057 0.00651 13.105 0.0022 1.87 ± 0.02 0.62 0.063 dwarf planet; plutino; multiple round (HE) 17
Eris
136199
1163±6[b][11] 0.1825[b] 6.59 0.0061 16.7[12] 0.0028 2.52 ± 0.05 0.824 0.084 dwarf planet; SDO; binary round (HE) 18
Haumea
136108
798±6 to 816[13][b] 2.36[c] 0.0022 4.006[14] 0.00066 1.8–1.9 0.401 0.0409 dwarf planet; resonant KBO (7:12); trinary; has rings round (scalene ellipsoid) 19
Titania
Uranus III
788.4±0.6[d] 0.1237[d] 2.06 0.0019 3.526 0.00059 1.711 ± 0.005 0.378 0.0385 moon of Uranus round 20
Rhea
Saturn V
763.8±1.0[d] 0.1199[d] 1.87 0.0017 2.3166 0.00039 1.236 ± 0.005 0.26 0.027 moon of Saturn round (HE, disputed) 21
Oberon
Uranus IV
761.4±2.6[a] 0.1195[a] 1.85 0.0017 3.014 0.0005 1.63 ± 0.05 0.347 0.035 moon of Uranus round 22
Iapetus
Saturn VIII
734.5±2.8 0.1153 1.55 0.0014 1.9739 0.00033 1.088 ± 0.013 0.223 0.0227 moon of Saturn round (not in HE) 23
Makemake
136472
715+19
−11
[15]
0.112 1.7 0.0016 4.4 0.000737 2.3 ± 0.9 0.57 0.0581 dwarf planet; cubewano round 24
2007 OR10
225088
615±25[16] 0.0983 1.03 0.0009 1.75 0.00029 1.72 ± 0.16 0.3 0.0306 resonant KBO (3:10) unknown 25
Charon
Pluto I
606±3 0.0951 0.932 0.0009 1.52 0.00025 1.702 ± 0.021 0.288 0.0294 moon of Pluto round 26
Umbriel
Uranus II
584.7±2.8 0.0918 0.84 0.0008 1.2 0.00020 1.39 ± 0.16 0.234 0.024 moon of Uranus round 27
Ariel
Uranus I
578.9±0.6 0.0909 0.81 0.0007 1.35 0.000226 1.66 ± 0.15 0.269 0.027 moon of Uranus round 28
Dione
Saturn IV
561.4±0.4 0.0881 0.73 0.0007 1.096 0.000183 1.478 ± 0.003 0.232 0.0237 moon of Saturn round (not in HE) 29
Quaoar
50000
555±2.5 0.0871 0.716 0.0007 1.4 ± 0.1 0.0002 2.2 ± 0.4[17] 0.3 0.0127 cubewano; binary unknown 30
Tethys
Saturn III
531.1±0.6 0.0834 0.624 0.0006 0.6173 0.000103 0.984 ± 0.003[18] 0.145 0.015 moon of Saturn round (not in HE) 31
Sedna
90377
497.5±40 0.0785 0.516 0.0005 sednoid; detached object unknown 32
Ceres
1
473[19] 0.0742 0.433 0.0004 0.939[20] 0.000157 2.17 0.29 0.030 dwarf planet; belt asteroid round (HE) 33
2002 MS4
307261
467±24 0.0733 0.427 0.0004 cubewano[21] unknown 34
Orcus
90482
458±13 0.0719 0.404 0.0004 0.641 ± 0.19 0.0001 2.47[22] 0.2 0.0204 plutino; binary unknown 35
Salacia
120347
425±23 0.0667 0.3261 0.0003 0.438 ± 0.016[23] 0.000073 1.16+0.59
−0.36
[24]
0.162 0.0165 cubewano; binary unknown 36
  star    giant planet    terrestrial planet    the Moon, moon of Earth    moon of Jupiter    moon of Saturn    moon of Uranus    moon of Neptune    moon of Pluto

From 200 to 399 kmEdit

All imaged icy moons except Proteus with radii greater than 200 km are round, although those under 400 km that have had their shapes carefully measured are not in hydrostatic equilibrium.[6] Most asteroids are rockier and less likely to be round; for example, 10 Hygiea is not, while 2 Pallas and 4 Vesta are borderline.[citation needed]

Body[note 1] Image Radius[note 2]
(km)
Mass
(1020 kg)
Density
(g/cm3)
Type[note 5] Remarks – shape[note 5] Refs[note 6]
r · M
2002 AW197
55565
384+20
−18
cubewano [25] · [25]
2013 FY27   370+45
−43
detached object [26] · M
2003 AZ84
208996
366 plutino; possible binary scalene ellipsoid[27] [27] · M
Varda
174567
358.3±2.4 2.664±0.064 1.24+0.5
−0.35
cubewano; binary [28] · [25]
Dysnomia
Eris I
342±25 moon of Eris [29] · M
2004 GV9
90568
340±17 cubewano [30] · M
2005 RN43
145452
339.5+27.5
−36.5
cubewano [30] · M
2015 RR245
523794
~335 - - resonant KBO (2:9) [31] · M
Varuna
20000
334+77
−43
3.7 0.99 cubewano scalene ellipsoid [32] · [33]
2010 KZ39 333.02 cubewano [34] · M
2002 UX25
55637
332.5±14.5 1.25±0.03 0.82±0.11 cubewano; binary [17] · [35]
Gǃkúnǁʼhòmdímà
229762
319+12
−6
1.361±0.033 1.04±0.17 SDO likely non-spherical[36] [36] · [37]
2010 RF43 318.03 SDO [38] · M
2003 UZ413
455502
318 plutino [21] · M
2014 UZ224 317.5+32.5
−36
SDO [39] · M
Ixion
28978
308.5+9.5
−10
plutino [40] · M
2008 ST291 ~306 SDO [41] · M
2007 JJ43
278361
305+85
−70
cubewano [42] · M
2006 QH181 303.5 SDO [21] · M
Chaos
19521
300+70
−65
cubewano [30] · M
2002 TC302
84522
292.05+52.8
−44
resonant KBO (2:5) [17] · M
2005 RM43
145451
292 SDO [21] · M
2010 RE64
523639
~280.5 SDO [43] · M
2004 XR190 ~280 SDO [43] · M
2002 XV93 274.6+10.85
−11.5
plutino [44] · M
2014 FC69 266.5 SDO [21] · M
2001 UR163
42301
265.7 resonant KBO (4:9) [45] · M
Vesta
4
  262.7±0.1 2.59 3.46 belt asteroid type V formerly round (not in hydrostatic equilibrium: frozen-in ellipsoidal shape and large impact basins)[46][47] [48] · [48]
2003 VS2
84922
261.5+17.5
−17.2
plutino [44] · M
Pallas
2
256±3 2.11±0.26 3.0±0.5 belt asteroid type B irregular[49] [49] · [50]
2004 TY364
120348
256+18.5
−20
cubewano [40] · M
2010 FX86 ~254 cubewano [21] · M
2010 VK201
523645
252.5 cubewano [51] · M
2003 QX113 ~252.5 SDO [21] · M
2011 FW62 ~251.5 plutino [43] · M
Enceladus
Saturn II
252.1±0.2 1.08±0.001 1.609±0.005 moon of Saturn round (not in hydrostatic equilibrium: frozen-in ellipsoidal shape) [52] · [53]
2018 VG18 ~250 SDO [54] · M
2005 UQ513
202421
249+31.5
−37.5
cubewano [25] · M
2004 NT33
444030
241.26 cubewano [55] · M
2014 UM33
472271
~239 cubewano [43] · M
Vanth
Orcus I
237.5±37.5 ~0.4 ~1.5 moon of Orcus [22] · [22]
Miranda
Uranus V
  235.8±0.7 0.659±0.075 1.2±0.15 moon of Uranus round [56] · [57]
Dziewanna
471143
235+17.5
−5
SDO [58] · M
2015 AM281
495603
~234 resonant KBO (2:5) [21] · M
2005 TB190
145480
232±31 detached object [29] · M
1999 DE9
26375
230.5±22.5 resonant KBO (2:5) [59] · M
2003 FY128
120132
230±10.5 SDO [29] · M
2002 KX14
119951
227.5±27 cubewano [30] · M
2000 YW134
82075
~227.5 SDO [21] · M
2012 VP113 ~225 sednoid [60] · M
2002 VR128
84719
224.25+24.05
−21.6
plutino [44] · M
2011 GM27
471288
~223 cubewano [43] · M
2010 TJ ~221.5 SDO [21] · M
2002 WC19
119979
~220 resonant KBO (1:2); binary [61] · M
Hygiea
10
217.83±4.5 10.76±0.47 1.85±0.12 belt asteroid type C irregular [62] · [62]
1999 CD158
469306
210.13 resonant KBO (4:7) [63] · M
Proteus
Neptune VIII
  210±7 0.44 ~1.3 moon of Neptune irregular [3] · [3]
2005 QU182
303775
208±36.5 SDO [29] · M
2001 QF298
469372
204.1+20.1
−22.45
plutino [44] · M
2004 PF115
175113
203.15+48.8
−37.65
plutino [44] · M
Huya
38628
203±8 plutino [17] · M
2010 VZ98
445473
200.67 SDO [64] · M

Legend:

  belt asteroid    moon of Saturn    moon of Uranus    moon of Neptune    Dysnomia, moon of Eris
SDO – scattered disc object
cubewano – classical Kuiper belt object
plutino - trans-Neptunian object in Pluto-like orbit

From 100 to 199 kmEdit

This list contains a selection of objects estimated to be between 100 and 199 km in radius (200 and 399 km in diameter). The largest of these may lie above the boundary for hydrostatic equilibrium, but most are irregular. Most of the trans-Neptunian objects (TNOs) listed with a radius smaller than 200 km have "assumed sizes based on a generic albedo of 0.09" since they are too far away to directly measure their sizes with existing instruments. Mass switches from 1021 kg to 1018 kg (Zg). Main-belt asteroids have orbital elements constrained by (2.0 AU < a < 3.2 AU; q > 1.666 AU) according to JPL Solar System Dynamics (JPLSSD).[65] Many TNOs are omitted from this list as their sizes are poorly known.[21]

Body[note 1] Image Radius[note 2]
(km)
Mass
(1018 kg)
Type Remarks – shape Refs[note 6]
r · M
2004 UX10
144897
199±19.5 ~30 plutino [44] · [66]
Mimas
Saturn I
198.2±0.4 37.49±0.03 moon of Saturn round (smallest known body currently known to have an ellipsoidal shape, but not in hydrostatic equilibrium) [52] · [53]
1998 SN165
35671
196.5±19.5 cubewano [25] · M
Ilmarë
Varda I
180.5+24
−19
secondary of Varda [67] · M
2017 OF69 ~177.667 plutino [21] · M
Nereid
Neptune II
170±25 moon of Neptune [3] · M
1996 TL66
15874
169.5±10 SDO [29] · M
2004 XA192
230965
169.5+60
−47.5
SDO [25] · M
2010 TY53 ~164.5 extended centaur [43] · M
Interamnia
704
163±1 ~50 belt asteroid type F irregular shape [68] · [69]
Hiʻiaka
Haumea I
~160 17.9±1.1 moon of Haumea [14] · [14]
Europa
52
157.5±3.5 32.7 belt asteroid type C irregular shape[70] [71] · [50]
1995 SN55 ~145 Lostcentaur or transient TNO [43] · M
Davida
511
144.5±10.5 38.4±2 belt asteroid type C irregular shape [72] · [50]
Sylvia
87
143±5.5 14.78±0.06 belt asteroid (outer) type X; trinary irregular shape[70] [73] · [74]
Actaea
Salacia I
143±12 secondary of 120347 Salacia [23] · M
Hyperion
Saturn VII
138.6±4 5.62±0.05 moon of Saturn irregular shape [6] · [6]
Juno
3
135.7±11 26.7 belt asteroid type S irregular shape[70] [75] · [50]
Chiron
2060 or 95P/Chiron
135.69 centaur has rings [76] · M
Eunomia
15
134±7.5 31.2 belt asteroid type S irregular shape[70] [50] · [50]
1998 SM165
26308
134±14 6.87±1.8 resonant KBO (1:2) irregular shape [77] · [77]
Euphrosyne
31
133.54±1.305 5.81±1.97 belt asteroid type C irregular shape [78] · [50]
Chariklo
10199
130.175 centaur has rings [79] · M
2005 RR43
145453
~126 cubewano; Haumea family [80] · M
Hektor
624
125±13 7.9±1.4 Jupiter trojan (L4) type D; binary irregular shape; contact binary [81] · [81]
Sila
79360
124.5+15
−15.5
cubewano; binary with Nunam double classical Kuiper belt object 79360 Sila–Nunam [82] · M
2007 RW10
309239
123.5±15 TNO; quasi-satellite of Neptune [29] · M
Altjira
148780
123+19
−70
cubewano; binary secondary S/2007 (148780) 1 [25] · M
Cybele
65
118.63±2.4 17.8 belt asteroid (outer) type C irregular shape [83] · [50]
Nunam
79360
118+14
−15
cubewano; binary with Sila double classical Kuiper belt object 79360 Sila–Nunam [82] · M
2001 QC298 117.5+10.5
−11.5
11.88±0.14 cubewano; binary [25] · [25]
Patientia
451
117.21±5.085 1.09±0.53 belt asteroid type C irregular shape [84] · [84]
Thisbe
88
~116 18.3±10.9 belt asteroid type B irregular shape[85] [86] · [50]
Bamberga
324
114.72±3.7 11 belt asteroid type C irregular shape [87] · [88]
Psyche
16
113±23 22.3±3.6 belt asteroid type M irregular shape [89] · [90]
Fortuna
19
112.5 12.7 belt asteroid type G irregular shape [50] · [50]
Ceto
65489
111.5±5 5.4±0.4 extended centaur; binary [29] · [91]
2001 FP185
82158
111.295 SDO [92] · M
Herculina
532
111.195 belt asteroid type S irregular shape[70] [93] · M
S/2007 (148780) 1
Altjira I
110.5+17
−62.5
cubewano; binary secondary of 148780 Altjira [25] · M
Doris
48
108.24±2.38 17 belt asteroid type C irregular shape [94] · [95]
Egeria
13
108.03±27.39 16.3 belt asteroid type G irregular shape [96] · M
Phoebe
Saturn IX
106.56±0.76 8.292±0.01 moon of Saturn formerly round[97] [6] · [6]
Deucalion
53311
~106 cubewano [21] · M
2015 TH367 ~105.5 centaur [43] · M
Camilla
107
105.185±4.163 11.2 belt asteroid (outer) type C; trinary irregular shape[85] [98] · [62]
Aurora
94
102.445±1.8 6.23±3.64 belt asteroid type C irregular shape [99] · [84]
Eugenia
45
101.164±1.084 5.69 belt asteroid type F; trinary irregular shape[70] [100] · [101]
Legend:
  Jupiter trojan    moon of Saturn    moon of Neptune    moon of Haumea

From 50 to 99 kmEdit

This list contains a selection of objects 50 and 99 km in radius (100 km to 199 km in average diameter). The listed objects currently include most objects in the asteroid belt and moons of the giant planets in this size range, but many newly discovered objects in the outer Solar System are missing, such as those included in the following reference.[21] Asteroid spectral types are mostly Tholen, but some might be SMASS.

Body[note 1] Image Radius[note 2]
(km)
Mass
(1018 kg)
Type – notes Refs[note 6]
r · M
Iris
7
99.915±5 16.2±0.9 belt asteroid type S [102] · [50]
Chicago
334
99.385±2.799 5.06±5.63 belt asteroid type C [103] · [84]
Themis
24
99±10 11.3±4.3 belt asteroid type C; Themis family [50] · [50]
Larissa
Neptune VII
97±5.4 ~4.2 moon of Neptune [104] · [e]
Ursula
375
96.815±1.26 8.45±5.26 belt asteroid type C [106] · [84]
Bertha
154
96.306±1.095 9.19±5.2 belt asteroid type C [107] · [84]
S/2002 (2001 QC298) 1
2001 QC298 I
96+9
−10
secondary of 2001 QC298 [25] · M
Metis
9
95 14.7±2 belt asteroid type S [50] · [50]
Pholus
5145
95±13 centaur [108] · M
Hermione
121
~95 5.38±0.3 outer belt asteroid type C; binary [109] · [50]
Amphitrite
29
94.78±0.565 11.8 belt asteroid type S [98] · [50]
Daphne
41
94.5±0.5 6.8 belt asteroid type C; binary [110] · [50]
Bienor
54598
93.75±7.75 centaur [111] · M
Hebe
6
92.59±1.45 12.8 belt asteroid type S [112] · [50]
Elektra
130
90.326±1.349 6.6±0.4 belt asteroid type G; binary [113] · [114]
Loreley
165
90.042±1.032 19.1±1.9 belt asteroid type C [115] · [84]
Laetitia
39
89.742±0.843 4.72±1.14 belt asteroid type S [116] · [84]
Dido
209
89.504±0.53 4.59±7.42 belt asteroid type C [117] · [84]
Janus
Saturn X
89.5±1.4 1.898±0.001 moon of Saturn [6] · [6]
Teharonhiawako
88611
89+16
−18
cubewano; primary of Sawiskera [25] · M
Aegle
96
88.887±0.772 6.48±6.26 belt asteroid type T [118] · [84]
Diotima
423
87.929±31.927 belt asteroid type C [111] · M
S/2015 (136472) 1
Makemake I
~87.5 moon of Makemake [119] · M
Galatea
Neptune VI
87.4±4.9 2.12±0.08 moon of Neptune [104] · [120]
Aletheia
259
87.159±0.527 7.79±0.43 belt asteroid type CP/type X[121] [121] · [84]
Phorcys
Ceto I
87+8
−9
1.67 secondary of 65489 Ceto [91] · [91]
Palma
372
86.821±1.42 5.15±0.64 belt asteroid type B [122] · [84]
Alauda
702
86.145±27.69 6.057±0.36 belt asteroid type C; binary [123] · [124]
Winchester
747
85.855±1.55 3.81±2.22 belt asteroid type C [125] · [84]
Aspasia
409
85.506±0.578 11.8±2.3 belt asteroid type C [126] · [84]
Hilda
153
85.315±1.65 ~5.2 belt asteroid; Hildas [127] · M
Pretoria
790
85.185±1.3 4.58±0.28 outer belt asteroid type P;[128] Cybele [128] · [84]
Himalia
Jupiter VI
85 4.2±0.6 moon of Jupiter; Himalia group [3] · [129]
Namaka
Haumea II
~85 1.79±1.48 moon of Haumea [14] · [14]
Germania
241
84.45±1.55 0.86±5 belt asteroid type CP/type B [130] · [84]
Rhadamanthus
38083
~84 trans-Neptunian object [21] · M
Kalliope
22
83.768±1.527 8.16±0.26 belt asteroid type M; binary [131] · [132]
Stereoskopia
566
83.691±1.747 outer belt asteroid type C; Cybele [133] · M
Amalthea
Jupiter V
83.5±2 2.08±0.15 moon of Jupiter [134] · [135]
Agamemnon
911
83.33±1.95 Jupiter trojan (L4) type D [136] · M
Elpis
59
82.559±2.253 3±0.5 belt asteroid type CP/type B [137] · [84]
Siegena
386
82.505±1.35 8.14±1.58 belt asteroid type C [138] · [84]
Sycorax
Uranus XVII
82.5+18
−21
moon of Uranus [40] · M
Nemesis
128
81.258±0.648 5.97±2.56 belt asteroid type C [98] · [84]
Puck
Uranus XV
81±2 moon of Uranus [139] · M
Typhon
42355
81±4.5 SDO; resonant KBO (7:10); extended centaur; binary [29] · M
Prokne
194
80.834±0.626 2.68±0.29 belt asteroid type C [140] · [84]
Eunike
185
80.232±1.008 3.56±2.61 belt asteroid type C [141] · [84]
Alexandra
54
80.06±0.929 6.16±3.5 belt asteroid type C [142] · [84]
Manwë
385446
80+12
−22
1.94±0.036 resonant KBO (4:7); binary [143] · [143]
Gyptis
444
79.666±0.245 12.5 belt asteroid type C [144] · [50]
Despina
Neptune V
78±4.7 moon of Neptune [104] · M
Hypatia
238
77.829±0.376 4.9±1.7 belt asteroid type C [145] · [84]
Lachesis
120
77.566±0.567 belt asteroid type C [146] · M
Io
85
77.395±1.9 belt asteroid type FC/type B[147] [147] · M
Minerva
93
77.078±0.649 belt asteroid type C; trinary [148] · M
Irene
14
76.145 8.2 belt asteroid type S [149] · [50]
Berbericia
776
75.855±0.439 2.2±2.71 belt asteroid type C [150] · [84]
Juewa
139
75.558±0.798 5.54±2.2 belt asteroid type CP/type X[151] [151] · [84]
Pales
49
74.9 2.69 belt asteroid type C [136] · [50]
Adeona
145
74.75±2.725 2.08±0.57 belt asteroid; Adeona [84] · [84]
Eleonora
354
74.485±0.213 belt asteroid type S [152] · M
Helio
895
74.215±2.51 9.87±6.05 belt asteroid type B [84] · [84]
Comacina
489
74.064±1.94 belt asteroid type S [153] · M
1998 WW31 ~74 2.66±0.02 cubewano; binary [154] · [154]
Arethusa
95
73.985±2.574 belt asteroid type C [155] · M
Flora
8
73.746±0.513 8.47 belt asteroid type S; Flora [156] · [50]
Pulcova
762
73.672±0.409 ~1.4 belt asteroid type F; binary [157] · [50]
Lamberta
187
73.647±0.695 1.8±0.85 belt asteroid type C [158] · [84]
Dione
106
73.585±1.67 3.06±1.54 belt asteroid type G [84] · [84]
Merapi
536
73.533±2.762 26.1±4.7 belt asteroid type X [159] · [84]
Lomia
117
73.39 6.08±0.63 belt asteroid type X [84] · [84]
Meliboea
137
72.96±1.79 7.27±3.07 belt asteroid type C [84] · [84]
Liguria
356
72.752±0.721 7.83±1.5 belt asteroid type C [160] · [84]
Julia
89
72.742±0.633 6.71±1.82 belt asteroid type S [161] · [84]
Freia
76
72.712±0.644 1.97±4.2 outer belt asteroid type P/type X; Cybele [162] · [84]
Sibylla
168
72.683±1.609 3.92±1.8 belt asteroid type C [163] · [84]
Philomela
196
72.313±2.043 4±1.53 belt asteroid type S [164] · [84]
Adorea
268
72.293±0.446 3.25±2.26 belt asteroid type FC [165] · [84]
Parthenope
11
71.444±0.504 6.15 belt asteroid type S [166] · [50]
Aglaja
47
70.95±4.36 3.25±1.68 belt asteroid type C [84] · [84]
Bononia
361
70.86 belt asteroid type D [167] · M
Vibilia
144
70.67±1.38 5.3±1.2 belt asteroid type C [84] · [84]
Isolda
211
70.563±1.243 4.49±2.43 belt asteroid type C [168] · [84]
Patroclus
617
70.181±0.434 1.36±0.11 Jupiter trojan (L5) type P; binary [169] · [84]
Dembowska
349
69.885±2.15 3.58±1.03 belt asteroid type R [170] · [84]
Princetonia
508
69.845±1.7 2.99±0.65 belt asteroid type C [84] · [84]
Melpomene
18
69.797±1.226 3 belt asteroid type S [171] · [50]
Bertholda
420
69.349±1.723 14.8±0.9 belt asteroid type P [172] · M
Hedwig
476
69.247±0.488 belt asteroid type P [173] · M
Nemausa
51
69.079±0.483 2.48±0.86 belt asteroid type G [174] · [84]
Hesperia
69
69.065±2.35 5.86±1.18 belt asteroid type M [175] · [84]
Hispania
804
68.976±0.982 5±1.78 belt asteroid type P [176] · [84]
Klymene
104
68.277±0.777 belt asteroid type C [177] · M
Medea
212
68.06±1.25 13.2±1 belt asteroid type DCX[178] [178] · [84]
Massalia
20
67.84±1.837 5.67 belt asteroid type S [179] · [50]
Portia
Uranus XII
67.6±4 moon of Uranus [3] · M
Wratislavia
690
67.325±1.9 12.8±0.3 belt asteroid type CPF[180] [180] · [84]
Argentina
469
66.859±0.373 4.53±1.76 belt asteroid type X; Cybele [181] · [84]
Circe
34
66.496±0.517 3.66±0.03 belt asteroid type C [182] · [84]
Protogeneia
147
66.465±2.55 12.3±0.5 belt asteroid type C [183] · [84]
Emma
283
66.193±0.129 1.38 belt asteroid type X; binary [184] · [50]
Erminia
705
66.131±0.589 belt asteroid type X [185] · M
Lucina
146
65.947 belt asteroid type C [186] · M
Hestia
46
65.736±11.076 3.5 belt asteroid type P/type Xc [187] · [95]
Lumen
141
65.675±2.605 8.25±5.77 belt asteroid type C [84] · [84]
Elfriede
618
65.646±0.686 belt asteroid type C [188] · M
Eukrate
247
65.468±0.253 belt asteroid type CP/type Xc[189] [189] · M
Ophelia
171
65.404±0.742 belt asteroid type C; Themis [190] · M
Kleopatra
216
65.333 4.64±0.02 belt asteroid type M; trinary [191] · [84]
Achilles
588
65.049±0.277 Jupiter trojan (L4) type DU [192] · M
Sawiskera
Teharonhiawako I
65+12
−13
secondary of 88611 Teharonhiawako [25] · M
Carlova
360
64.563±1.416 belt asteroid type C [193] · M
Ornamenta
350
64.365±0.599 belt asteroid type C [194] · M
Polyxo
308
64.289±0.779 belt asteroid type T [195] · M
Dynamene
200
64.151±0.973 1.07±0.16 belt asteroid type C [196] · [84]
Panopaea
70
63.956±0.373 4.33±1.09 belt asteroid type C [197] · [84]
Myrrha
381
63.819±0.843 belt asteroid type C [198] · M
Hippo
426
63.55 belt asteroid type F [199] · M
Thule
279
63.295±1.85 belt asteroid type D [200] · M
Tanete
772
63.237±0.649 belt asteroid type C [201] · M
Undina
92
63.21±1.7 4.43±0.25 belt asteroid type M [202] · [84]
Ate
111
63.172±0.117 1.76±0.44 belt asteroid type C [203] · [84]
Borasisi
66652
63+12.5
−25.5
3.433±0.027 cubewano; binary [25] · [204]
Ino
173
62.911±0.745 4.79±3.11 belt asteroid type C [205] · [84]
Charybdis
388
62.877±0.944 belt asteroid type C [206] · M
Aemilia
159
62.618±0.596 belt asteroid type C [207] · M
Pompeja
203
62.296±0.539 belt asteroid type DCX[208] [208] · M
Papagena
471
62.275±4.385 3.05±1.73 belt asteroid type S [84] · [84]
Aurelia
419
62.235±1.54 1.72±0.34 belt asteroid type F [84] · [84]
Desiderata
344
62.091±1.258 1.39±0.48 belt asteroid type C [209] · [84]
Boliviana
712
62.063±0.632 belt asteroid type C/type X [210] · M
Ninina
357
62.054±0.429 belt asteroid type CX [211] · M
2006 SQ372
308933
~62 extended centaur [43] · M
Chloris
410
61.785±1.428 6.24±0.3 belt asteroid type C [212] · [84]
S/2000 (1998 WW31) 1
1998 WW31 I
~61.5 secondary of 1998 WW31 [154] ·
Gudrun
328
61.295±1.86 3.16±0.46 belt asteroid type S [84] · [84]
Leto
68
61.255±1.569 3.28±1.9 belt asteroid type S [213] · [84]
Thia
405
61.07±3.845 1.38±0.14 belt asteroid type C [84] · [84]
2001 QG298
139775
~61 plutino; contact binary [214] · M
Melete
56
60.667±0.474 4.61 belt asteroid type P [215] · [84]
Bellona
28
60.45±1.9 2.62±0.15 belt asteroid type S [216] · [84]
Diana
78
60.3±1.35 1.27±0.13 belt asteroid type C [217] · [84]
Anchises
1173
60.245±1.455 Jupiter trojan (L5) type P [106] · M
Armida
514
60.047±0.395 belt asteroid type XC [218] · M
Antigone
129
59.72±1.955 2.65±0.89 belt asteroid type M [84] · [84]
Nuwa
150
59.564±0.935 1.62±0.2 belt asteroid type C [219] · [84]
Veritas
490
59.402±0.915 5.99±2.23 belt asteroid type C; Veritas family [220] · [84]
Paris
3317
59.395±0.588 Jupiter trojan (L5) type T [221] · M
Galatea
74
59.355±1.4 6.13±5.36 belt asteroid type C [222] · [84]
Deiphobus
1867
59.11±0.808 Jupiter trojan (L5) type D [223] · M
Äneas
1172
59.01±0.403 Jupiter trojan (L5) type D [224] · M
Diomedes
1437
58.893±0.59 Jupiter trojan (L4) type D [225] · M
Terpsichore
81
58.864±0.367 6.19±5.31 belt asteroid type C [226] · [84]
Ani
791
58.433±0.512 belt asteroid type C [227] · M
Freda
1093
58.365±1.45 belt asteroid type C [228] · M
Ulla
909
58.22±1.2 belt asteroid type X; Ulla family [229] · M
Zelinda
654
58.151±1.189 1.35±0.14 belt asteroid type C [111] · [84]
Epimetheus
Saturn XI
58.1±1.8 5.266±0.006 moon of Saturn [6] · [6]
Johanna
127
58.07±1.965 3.08±1.35 belt asteroid type C [230] · [84]
Leda
38
57.705±0.665 5.71±5.47 belt asteroid type C [84] · [84]
Eucharis
181
57.692±0.732 belt asteroid type S/type Xk [231] · M
Victoria
12
57.544±0.599 2.45±0.46 belt asteroid type S [232] · [84]
Adelheid
276
57.362±1.638 belt asteroid type X [233] · M
Odysseus
1143
57.312±0.296 Jupiter trojan (L4) type D [234] · M
Alcathous
2241
56.841±0.858 Jupiter trojan (L5) type D [235] · M
Messalina
545
56.316±0.612 belt asteroid type C [236] · M
Mnemosyne
57
56.295±1.4 12.6±2.4 belt asteroid type S [237] · [84]
Nestor
659
56.16±0.925 Jupiter trojan (L4) type XC [238] · M
Sophrosyne
134
~56.094 belt asteroid type C [186] · M
Makhaon
3063
55.828±0.772 Jupiter trojan (L4) type D [239] · M
Athamantis
230
55.666±0.616 1.89±0.19 belt asteroid type S [240] · [84]
Hohensteina
788
55.648±0.392 belt asteroid [241] · M
Harmonia
40
55.626±0.196 belt asteroid type S [242] · M
Marianna
602
55.222±1.517 10.2±0.5 belt asteroid type C [243] · [84]
Xanthippe
156
55.205 6.49±3.71 belt asteroid type C [186] · [84]
Scheila
596
55.204±0.997 belt asteroid type PCD/type T [96] · M
Atalante
36
55.07±2.19 4.32±3.8 belt asteroid type C [84] · [84]
Semele
86
54.965±0.305 belt asteroid type C [244] · M
Eurterpe
27
54.895±0.77 1.67±1.01 belt asteroid type S [106] · [84]
Siwa
140
54.895±1.5 1.4 belt asteroid type P/type Xc[245] [245] · M
Antilochus
1583
54.421±0.272 Jupiter trojan (L4) type D [246] · M
Fides
37
54.175±0.95 belt asteroid type S [247] · M
Gerlinde
663
53.898±0.786 belt asteroid type X [248] · M
Thalia
23
53.765±1.1 1.96±0.09 belt asteroid type S [249] · [84]
Brixia
521
53.614±0.247 belt asteroid type C [250] · M
Iduna
176
53.488±0.54 belt asteroid type G [251] · M
Erato
62
53.461±0.329 belt asteroid type BU/type Ch; Themis [252] · M
Astraea
5
53.349±1.57 2.9 belt asteroid type S [253] · [95]
Ianthe
98
53.08±1.88 0.893±0.199 belt asteroid type C [84] · [84]
Albion
15760
~53 cubewano; classification name derived from its former designation 1992 QB1 [43] · M
Marion
506
52.97±1.3 belt asteroid type XC [254] · M
Adelinda
229
52.956±0.889 belt asteroid type BCU [255] · M
Pabu
Borasisi I
52.5+10
−21
secondary of 66652 Borasisi [25] · M
Rollandia
1269
52.447±0.521 outer belt asteroid type D [256] · M
Mandeville
739
52.259±0.809 1.16±1.07 belt asteroid type X [257] · [84]
Corduba
365
52.255±1.21 5.84±0.95 belt asteroid type X/type C [84] · [84]
Eos
221
51.76±2.8 5.87±0.34 belt asteroid type S/type K [84] · [84]
Aegina
91
51.701±0.242 belt asteroid type C [258] · M
Leukothea
35
51.528±0.601 belt asteroid type C [259] · M
Menoetius
Patroclus I
51.4±0.25 secondary of 617 Patroclus [260] · M
Isis
42
51.365±1.365 1.58±0.52 belt asteroid type S [84] · [84]
Tauris
814
51.115±1.069 belt asteroid type C [261] · M
Helga
522
50.61±1.75 belt asteroid type X; Cybele [262] · M
Flammario
1021
50.383±0.804 5.14±0.12 belt asteroid type F [111] · [84]
Klotho
97
50.359±0.321 1.33±0.13 belt asteroid type M [111] · [84]
Aquitania
387
50.255±1.45 1.8 belt asteroid type S [263] · [95]
Troilus
1208
50.239±0.549 Jupiter trojan (L5) type FCU [264] · M
Eva
164
50.127±0.469 0.929±0.776 belt asteroid type CX/type X[265] [265] · [84]
Legend:
  Jupiter trojan    moon of Jupiter    moon of Saturn    moon of Uranus    moon of Neptune    moon of Haumea    moon of Makemake

From 20 to 49 kmEdit

This list contains a few examples because there are about 589 asteroids in the asteroid belt with a measured radius between 20 and 49 km.[266] Many thousands of objects of this size range have yet to be discovered in the Trans-Neptunian region. The number of digits is not an endorsement of significant figures. The table switches from ×1018 kg to ×1015 kg (Eg), and many of these mass values are assumed.

Body[note 1] Image Radius[note 2]
(km)
Mass
(1015 kg)
Type – notes Refs[note 6]
r · M
Asterope
233
49.836±0.573 belt asteroid type T/type K [267] · M
Nausikaa
192
49.388±0.619 1790±420 belt asteroid type S [268] · [84]
Thebe
Jupiter XIV
49.3±2 moon of Jupiter [134] · M
Lutetia
21
49±1 1700±17 belt asteroid type M [269] · [270]
Luscinia
713
48.984±0.438 outer belt asteroid type C [271] · M
Kalypso
53
48.631±13.299 5630±5000 belt asteroid type XC [272] · [84]
Laurentia
162
48.511±0.247 belt asteroid type STU/type Ch[273] [273] · M
Tercidina
345
48.4325±0.4905 2680±1180 belt asteroid type C [111] · [84]
Notburga
626
48.42±2.335 3240±1300 belt asteroid type CX/type Xc [84] · [84]
Henrietta
225
47.967±0.625 belt asteroid type F; Cybele [274] · M
Abastumani
1390
47.925±1.142 outer belt asteroid type P [275] · M
Euforbo
4063
47.809±0.339 Jupiter trojan (L4) type D [276] · M
Tisiphone
466
47.748±0.175 belt asteroid type C [277] · M
Adria
143
47.689±0.349 belt asteroid type C [278] · M
Arsinoë
404
47.485±0.476 3420±3030 belt asteroid type C [279] · [84]
Artemis
105
47.432±11.611 1540±540 belt asteroid type C [280] · [84]
Proserpina
26
47.4±0.85 748±895 belt asteroid type S [281] · [84]
Philosophia
227
47.318±1.278 belt asteroid [111] · M
Kolga
191
47.268±0.217 belt asteroid type XC/type Cb [282] · M
Andromache
175
47.266±0.542 belt asteroid type C [283] · M
Kassandra
114
47.089±0.477 belt asteroid type T [284] · M
Juliet
Uranus XI
46.8±4 moon of Uranus [3] · M
Urania
30
46.394±1.02 1740±490 belt asteroid type S [285] · [84]
Thorondor
Manwë I
46+7
−13
secondary of 385446 Manwë [143] · M
Irmintraud
773
45.836±0.45 belt asteroid type D/type T [286] · M
Ausonia
63
45.816±2.181 1530±150 belt asteroid type S [111] · [84]
Polyxena
595
45.324±0.724 outer belt asteroid [287] · M
Beatrix
83
44.819±1.326 belt asteroid type X [111] · M
Concordia
58
44.806±0.419 belt asteroid type C [111] · M
Teucer
2797
44.715±0.378 Jupiter trojan (L4) type D [288] · M
Echidna
Typhon I
44.5±3 secondary of 42355 Typhon [289] · M
Alkeste
124
44.324±0.826 belt asteroid type S [290] · M
Automedon
2920
44.287±0.898 Jupiter trojan (L4) type D [291] · M
Vanadis
240
43.964±0.808 1100±920 belt asteroid type C [292] · [84]
Ottilia
401
43.902±0.218 belt asteroid [293] · M
90 Antiope 43.9±0.5 828±22 belt asteroid type C; binary [294] · [294]
Kythera
570
43.743±0.392 outer belt asteroid type T [295] · M
Hermentaria
346
43.224±0.963 6330±180 belt asteroid type S [296] · [84]
Prometheus
Saturn XVI
43.1±2.7 159.5±1.5 moon of Saturn [6] · [6]
Lydia
110
43.045±1 belt asteroid type M/type X [297] · M
Elara
Jupiter VII
~43 moon of Jupiter; Himalia group [3] · M
Danaë
61
42.969±1.076 2890±2780 belt asteroid type S [298] · [84]
Hekate
100
42.867±0.981 belt asteroid type S [299] · M
Thetis
17
42.449±1.014 1200 belt asteroid type S [300] · [50]
Pandora
55
42.397±1.251 belt asteroid type M [301] · M
Huenna
379
42.394±0.779 383±19 belt asteroid type B/type C; binary [302] · [114]
Virginia
50
42.037±0.121 2310±700 belt asteroid type X/type Ch [303] · [84]
Feronia
72
41.975±2.01 3320±8490 belt asteroid type TDG [84] · [84]
Hera
103
41.954±1.046 belt asteroid type S [304] · M
S/2000 (90) 1
Antiope I
41.9±0.5 secondary of 90 Antiope [294] · M
Miriam
102
41.298±0.2 belt asteroid type P/type C [305] · M
Felicitas
109
41.294±0.308 750 belt asteroid type GC/type Ch[306] [306] · M
Poulydamas
4348
41.016±0.313 Jupiter trojan (L5) type C [307] · M
Logos
58534
41±9 458±6.9 cubewano; binary [308] · [308]
Pandora
Saturn XVII
40.7±1.5 137.1±1.9 moon of Saturn [6] · [6]
Thalassa
Neptune IV
40.7±2.8 moon of Neptune [104] · M
Weywot
Quaoar I
40.5±5.5 moon of Quaoar [17] · M
Gallia
148
40.435±0.52 4890±1670 belt asteroid type GU/type S [106] · [84]
Niobe
71
40.43±0.4 belt asteroid type S [106] · M
Asbolus
8405
40.415 centaur [309] · M
Pomona
32
40.38±0.8 belt asteroid type S [310] · M
Belinda
Uranus XIV
40.3±8 moon of Uranus [3] · M
Thyra
115
39.915±0.7 belt asteroid type S [311] · M
Cressida
Uranus IX
39.8±2 moon of Uranus [3] · M
Hertha
135
39.62±1 belt asteroid type M [312] · M
Amycus
55576
38.15±6.25 centaur [59] · M
Hylonome
10370
37.545 centaur [313] · M
Gaussia
1001
36.356±0.149 outer belt asteroid type PC [314] · M
Klio
84
39.16±0.48 belt asteroid type G/type Ch [106] · M
Nysa
44
37.83±0.37 belt asteroid type E [106] · M
Cyrene
133
36.088±0.466 belt asteroid type S [315] · M
Rosalind
Uranus XIII
36±6 moon of Uranus [3] · M
Caliban
Uranus XVI
~36 moon of Uranus [3] · M
Maja
66
35.895±0.46 belt asteroid type C [106] · M
Sirona
116
35.85±2.9 belt asteroid type S [316] · M
Ariadne
43
35.67±0.627 1210±220 belt asteroid type S [317] · [84]
Iphigenia
112
35.535±0.26 1970±6780 belt asteroid type C [84] · [84]
Gerda
122
35.338±0.456 belt asteroid type ST/type L[318] [318] · M
Sappho
80
34.282±0.517 belt asteroid type S [319] · M
Dike
99
33.677±0.208 belt asteroid type C [320] · M
Zoe
Logos I
~33.5 secondary of 58534 Logos [308] · M
Desdemona
Uranus X
32±4 moon of Uranus [3] · M
Helena
101
32.92±0.65 belt asteroid type S [321] · M
Eurynome
79
31.739±0.476 belt asteroid type S [322] · M
Halimede
Neptune IX
~31 moon of Neptune [3] · M
Frigga
77
30.695±0.089 1740±680 belt asteroid type MU/type Xe[323] [323] · [84]
Phocaea
25
30.527±1.232 599±60 belt asteroid type S [111] · [84]
Naiad
Neptune III
30.2±3.2 moon of Neptune [104] · M
Schwassmann–
Wachmann 1

29P
30.2±3.7 comet [324] · M
Hale–Bopp
C/1995 O1
30±10 comet [325] · M
Neso
Neptune XIII
~30 moon of Neptune [3] · M
Echo
60
~30 belt asteroid · M
Angelina
64
~30 belt asteroid type E · M
Asia
67
~30 belt asteroid · M
Eurydike
75
~30 180 belt asteroid type M · M
Alkmene
82
~30 belt asteroid · M
Hecuba
108
~30 390 belt asteroid · M
Althaea
119
~30 200 belt asteroid type S · M
Polana
142
~30 180 belt asteroid type F · M
Nessus
7066
~30 centaur · M
Cyllarus
52975
~30 centaur · M
Crantor
82982
~30 centaur · M
Echeclus
60558
29.5±2 centaur [326] · M
Bianca
Uranus VIII
27±2 moon of Uranus [3] · M
Tolosa
138
26.453±0.524 493±259 belt asteroid type S [327] · [84]
Mathilde
253
26.4 103.3±4.4 belt asteroid type C [328] · [329]
Hidalgo
944
26.225±1.8 centaur, first to be discovered in 1920; historically called asteroid. [106] · M
Piazzia
1000
25.775±0.43 belt asteroid type C [106] · M
Amalthea
113
25.069±0.633 belt asteroid type S; binary [330] · M
Prospero
Uranus XVIII
~25 moon of Uranus [3] · M
Setebos
Uranus XIX
~24 moon of Uranus [3] · M
Carme
Jupiter XI
~23 130 moon of Jupiter; Carme group [3] · M
Brunhild
123
22.605±0.942 belt asteroid type S [331] · M
Sao
Neptune XI
~22 moon of Neptune [3] · M
Metis
Jupiter XVI
21.5±2 ~119.893 moon of Jupiter [134] · [332]
Ophelia
Uranus VII
21.4±4 moon of Uranus [3] · M
Laomedeia
Neptune XII
~21 moon of Neptune [3] · M
Cordelia
Uranus VI
20.1±3 moon of Uranus [3] · M
Pasiphae
Jupiter VIII
~20 moon of Jupiter [3] · M
Siarnaq
Saturn XXIX
~20 moon of Saturn [3] · M
Psamathe
Neptune X
~20 moon of Neptune [3] · M
Klytia
73
~20 92 belt asteroid · M
Peitho
118
~20 76 belt asteroid · M
Liberatrix
125
~20 87 belt asteroid type M · M
Velleda
126
~20 94 belt asteroid · M
Vala
131
~20 69 belt asteroid · M
Aethra
132
~20 82 belt asteroid type M · M
Austria
136
~20 68 belt asteroid type M · M
Urda
167
~20 66.7 belt asteroid type S; Koronis family · M
Lacrimosa
208
~20 73.9 belt asteroid type S Koronis · M
Legend:
  Jupiter trojan    moon of Jupiter    moon of Saturn    moon of Uranus    moon of Neptune

From 1 to 19 kmEdit

This list contains some examples of Solar System objects between 1 and 19 km in radius. This is a common size for asteroids, comets, and moons.

Body[note 1] Image Radius[note 2]
(km)
Mass
(1015 kg)
Type – notes Refs[note 6]
r · M
Hydra
Pluto III
19.65 48±42 moon of Pluto [333] · [334]
Koronis
158
19.513±0.231 belt asteroid type S; Koronis family [335] · M
Nix
Pluto II
19.017 45±40 moon of Pluto [333] · [334]
Sinope
Jupiter IX
~19 moon of Jupiter [3] · M
Okyrhoe
52872
18±0.6 centaur [336] · M
Lysithea
Jupiter X
~18 moon of Jupiter; Himalia group [3] · M
Helene
Saturn XII
17.6±0.4 moon of Saturn; Dione trojan [6] · M
Hippocamp
Neptune XIV
17.4 ~50 moon of Neptune [104] · [104]
2014 MU69
486958
15.85±0.25 cubewano; contact binary; New Horizons flyby 2019 [337] · M
Ida
243
15.7 42±6 belt asteroid type S; Koronis family; binary [338] · [339]
Comas Solà
1655
15.3±1.1 belt asteroid type B [340] · M
Atlas
Saturn XV
15.1±0.9 6.6 moon of Saturn [6] · [6]
Ananke
Jupiter XII
~15 38.2 moon of Jupiter · M
Albiorix
Saturn XXVI
~15 moon of Saturn · M
Stephano
Uranus XX
~15 22 moon of Uranus · M
Perdita
Uranus XXV
~15 13 moon of Uranus · M
Linus
Kalliope I
~15 60 asteroid moon of 22 Kalliope · [341]
Weringia
226
~15 belt asteroid type S · M
Ganymed
1036
~15 33 NEA · M
Beethoven
1815
~15 belt asteroid · M
Elatus
31824
~15 centaur · M
Pan
Saturn XVIII
14.1±1.3 4.95 moon of Saturn [6] · [342]
Dioretsa
20461
14±3 centaur; damocloid [343] · M
Telesto
Saturn XIII
12.4±0.4 moon of Saturn; Tethys trojan [6] · M
Phobos
Mars I
11.267 10.659 moon of Mars [344] · [345]
Calypso
Saturn XIV
10.7±0.7 moons of Saturn; Tethys trojan [6] · M
Leda
Jupiter XIII
~10 moon of Jupiter; Himalia group [3] · M
Ymir
Saturn XIX
~10 moon of Saturn · M
Paaliaq
Saturn XX
~10 8.2 moon of Saturn · M
Tarvos
Saturn XXI
~10 moon of Saturn · M
Kiviuq
Saturn XXIV
~10 moon of Saturn · M
Trinculo
Uranus XXI
~10 3.9 moon of Uranus · M
Francisco
Uranus XXII
~10 7.2 moon of Uranus · M
Margaret
Uranus XXIII
~10 5.4 moon of Uranus · M
Ferdinand
Uranus XXIV
~10 5.4 moon of Uranus · M
Cupid
Uranus XXVII
~10 3.8 moon of Uranus · M
Romulus
Sylvia I
~10 4 asteroid moon of 87 Sylvia · M
Medusa
149
~10 8 belt asteroid · M
S/2006 (624) 1
Hektor I
~10 asteroid moon of 624 Hektor · M
Euler
2002
~10 5.5 belt asteroid · M
Masursky
2685
~10 5–11 belt asteroid · M
Eros
433
8.42 66.9 Amor/ NEA; spacecraft orbited and landed · M
Adrastea
Jupiter XV
8.2±2 moon of Jupiter [3] · M
Herschel
2000
7.384 belt asteroid [111] · M
Kerberos
Pluto IV
~6.333 16±9 moon of Pluto [346] · [347]
Deimos
Mars II
6.2±0.18 1.476 moon of Mars [3] · [348]
Gaspra
951
6.1±0.4 2–3 belt asteroid [349] · M
2002 RP120
65407
~6 3.1 Damocloid (retrograde) & possible ejected SDO · M
Styx
Pluto V
~5.5 ~7.65 moon of Pluto [346] · [347]
Callirrhoe
Jupiter XVII
~5 moon of Jupiter · M
Themisto
Jupiter XVIII
~5 0.69 moon of Jupiter · M
Ijiraq
Saturn XXII
~5 moon of Saturn · M
Erriapus
Saturn XXVIII
~5 moon of Saturn · M
Bestla
Saturn XXXIX
~5 moon of Saturn · M
Mab
Uranus XXVI
~5 moon of Uranus · M
Halley's Comet
1P
~5 0.03 comet · [350]
Petit-Prince
Eugenia I
~5 1.2 asteroid moon of 45 Eugenia · M
S/2004 (45) 1
Eugenia II
~5 asteroid moon of 45 Eugenia · M
Remus
Sylvia II
~5 0.2 asteroid moon of 87 Sylvia · M
S/2001 (107) 1
Camilla I
~5 1.5 asteroid moon of 107 Camilla · M
S/2002 (121) 1
Hermione I
~5 1.6 asteroid moon of 121 Hermione · M
S/2003 (379) 1
Huenna I
~5 asteroid moon of 379 Huenna · M
Phaethon
3200
~5 0.14 Apollo asteroid type B · M
Misterrogers
26858
~5 belt asteroid · M
LINEAR
118401
~5 0.23 belt asteroid; comet · M
Encke
2P
<5 comet · M
Holmes
17P
<5 comet · M
Comet Hyakutake
C/1996 B2
<5 comet[351] · M
Cruithne
3753
<5 0.13 Aten asteroid & quasi-satellite of Earth · M
Magellan
4055
<5 Amor asteroid type V · M
1998 QE2
285263
<5 NEA; binary · M
Comas Solà
32P
4.2 Jupiter-family comet[352] [353] · M
Daphnis
Saturn XXXV
3.8±0.8 0.084 moon of Saturn · [342]
S/2003 (130) 1
Elektra I
~3.5 0.4 asteroid moon of 130 Elektra [109] · M
Tempel 1
9P
2.8 0.075 comet [354] · M
Šteins
2867
2.65 belt asteroid type E [355] · M
Borrelly
19P
2.4 Jupiter-family comet[352] [356] · M
Pallene
Saturn XXXIII
2.22±0.07[357] 0.043 moon of Saturn · M
Annefrank
5535
2.17 belt asteroid, flyby visit by Stardust · M
Wild 2
81P
<2 comet; 2004 flyby Stardust (spacecraft) · M
Churyumov–Gerasimenko
67P
1.9 Jupiter-family comet[352] · M
1999 JM8
53319
1.75 Apollo asteroid; PHA [358] · M
1986 DA
6178
1.575 0.002 Amor asteroid type M · M
Methone
Saturn XXXII
1.45±0.03[357] 0.019 moon of Saturn · M
Polydeuces
Saturn XXXIV
1.3±0.4 0.03 moon of Saturn; Dione trojan [6] · M
APL
132524
1.25[359] belt asteroid - New Horizons flyby 2006 · M
Toutatis
4179
1.23 0.05 NEA, Chang'e 2 flyby visited · M
Legend:
  moon of Mars    moon of Jupiter    moon of Saturn    moon of Uranus    moon of Neptune    moon of Pluto

Types:

Main belt asteroids; Comets; NEA: Near-Earth asteroid; Asteroid moon

Below 1 kmEdit

This list contains examples of objects below 1 km in radius. That means that irregular bodies can have a longer chord in some directions, hence the mean radius averages out.

In the asteroid belt alone there are estimated to be between 1.1 and 1.9 million objects with a radius above 0.5 km,[360] many of which are in the range 0.5–1.0 km. Countless more have a radius below 0.5 km.

Very few objects in this size range have been explored or even imaged. The exceptions are objects that have been visited by a probe, or have passed close enough to Earth to be imaged. Radius is by mean geometric radius. Number of digits not an endorsement of significant figures. Mass scale shifts from × 1015 to 1012 kg, which is 1015 grams (Petagram – Pg).

Currently most of the objects of mass between 109 kg to 1012 kg (less than 1000 teragrams (Tg)) listed here are near-Earth asteroids (NEAs). 1994 WR12 has less mass than the Great Pyramid of Giza, 5.9 × 109 kg.

For more about very small objects in the Solar System, see meteoroid, micrometeoroid, and interplanetary dust cloud. (See also Visited/imaged bodies.)

Body[note 1] Image Radius[note 2]
(m)
Mass
(1012 kg)
Type – notes Refs[note 6]
r · M
Geographos
1620
885 4 NEA · Apollo [361] · M
Apollo
1862
850 5.1 NEA · Apollo · M
Braille
9969
800 Mars-crosser asteroid; Deep Space 1 1999 flyby · M
2007 PA8
214869
~800 NEA · Apollo [362] · M
Astronautica
100000
~800 Inner belt asteroid[363] [364] · M
Dactyl
Ida I
  700 Moon of 243 Ida · M
Icarus
1566
700 2.9 NEA · Apollo · M
Castalia
4769
700 1.3 NEA · Apollo [365] · M
1999 AN10
137108
650 NEA · Apollo · M
1950 DA
29075
600 3 NEA · Apollo; Earth-radared · M
1999 KW4
66391
600 2.33 NEA · Aten · Mercury-crosser · M
Wirtanen
46P
600 Comet · M
Hartley 2
103P
  570±80 0.3 Comet; flyby Deep Impact (spacecraft) · [366]
Ryugu
162173
565 NEA · visited by Hayabusa2 (2018-) · M
Nyx
3908
  520 5 NEA · Amor · M
Hypnos
14827
450 Comet · dormant comet[367] [368] · M
Aten
2062
450 0.76 NEA · Aten [369] · M
2007 CA19 432 1.2 NEA · Apollo · M
Golevka
6489
350 NEA · Apollo [370] · M
Itokawa
25143
346 0.0358 NEA · Apollo · M
Aegaeon
Saturn LIII
330±60[357] moon of Saturn · M
2004 XP14 300 NEA · Apollo · M
2004 VD17
144898
290 3 NEA · Apollo · [371]
Bennu
101955
262.5±37.5 0.078±0.009 NEA · Apollo · PHO [372] · [373]
2005 YU55
308635
180 NEA[374] Apollo · PHO[375] [376] · M
Nereus
4660
165 NEA · Apollo [377] · M
2004 BL86
357439
  162.5 NEA · Apollo · binary · M
Apophis
99942
  162.5 0.05 NEA · Aten · PHO [378] · [371]
S/2009 S 1 150 moon of Saturn · M
2010 TK7 150 Earth trojan · Apollo · M
2007 TU24 125 NEA · Apollo · PHO [379] · M
2002 JE9 100 NEA · Apollo · PHO · M
2010 XC15 100 NEA · Apollo · PHO · M
1994 WR12 65 0.002 NEA · Aten [380] · [371]
2009 FD
410777
  65 0.0028 NEA · Apollo [381] · [381]
2008 HJ 18 0.000005 NEA · fast rotator, LCDB, (43 s)[382] [382] · [382]
Duende
367943
  15 NEA · M
1998 KY26   15 NEA · fast rotator (10 min) [383] · M
Legend:
  minor-planet moon    moon of Saturn
NEA: near-Earth asteroid; Apollo asteroids are a group of NEAs

Surface gravityEdit

The surface gravity at the equator of a body can in most cases be accurately calculated using Newton's law of universal gravitation and centrifugal force.

The gravitational acceleration at the equator is given by Newton's law of universal gravitation. The formula that follows from this law is:

 

where

ag is the magnitude of the gravitational acceleration
G is the gravitational constant
m is the mass of the celestial body
r is the equatorial radius of the celestial body (if this varies significantly, the mean equatorial radius is used)

The magnitude of the outward acceleration due to centrifugal force is given by

 

where

T is the rotation period of the celestial body

The surface gravity at the equator is then given by:

 

See alsoEdit

NotesEdit

  1. ^ a b c d e f Radius estimated using equatorial radius and assuming body is spherical
  2. ^ a b c Radius has been determined by various methods, such as optical (Hubble), thermal (Spitzer), or direct imaging via spacecraft
  3. ^ Calculated in Wolfram Alpha using semi axes of 1161 × 852 × 569 (Ellipsoid volume: 2.35761×10^9 km³)
  4. ^ a b c d Radius estimated by using three radii and assuming body is spheroid
  5. ^ The mass estimate is based on the assumed density of 1.2 g/cm³, and a volume of 3.5 ×106 km³ obtained from a detailed shape model in Stooke (1994).[105]
Using equatorial radius and assuming body is spherical
Using three radii and assuming body is spheroid
* Radius is known only very approximately
R Radius has been determined by various methods, such as optical (Hubble), thermal (Spitzer), or direct imaging via spacecraft
9 Unknown radius, generic assumed albedo of 0.09
$ Well studied asteroid or moon whose dimensions and mass are very well known. Asteroid sizes and masses taken from James Baer's (Bio) personal website.
M Mass has been determined by perturbation. For asteroids, see James Baer's personal website.
Note: For many of the well-determined moons, radii were taken from the JPL Solar System Dynamics page.
O Radius has been determined by an occultation
  1. ^ a b c d e f g Name of body, including alternative names using Roman numerals to designate moons (such as "Saturn I" for Mimas), and numbers to designate minor planets
  2. ^ a b c d e f g Mean radius including uncertainties
  3. ^ Given as surface gravity (1 bar for gaseous planets)
  4. ^ Ranking by radius of the largest bodies in the Solar System; may not reflect the latest updates of measured radii
  5. ^ a b Figures from default source Johnston's Archive—List of Known Trans-Neptunian Objects,[21] if otherwise not mentioned in the References column
  6. ^ a b c d e f Reference column specifically for radius (r) and mass (M) citations

ReferencesEdit

  1. ^ Brown, M. "The Dwarf Planets". Caltech. Archived from the original on 2011-02-12. Retrieved 2008-09-25.
  2. ^ Britt, D. T.; Consolmagno, G. J.; Merline, W. J. (2006). "Small Body Density and Porosity: New Data, New Insights" (PDF). Lunar and Planetary Science XXXVII. Retrieved 2008-12-16.
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 2008-10-24. Retrieved 2008-12-16.
  4. ^ Williams, D. R. (2007-11-23). "Uranian Satellite Fact Sheet". NASA (National Space Science Data Center). Archived from the original on 2010-01-18. Retrieved 2008-12-12.
  5. ^ Mike Brown, How many dwarf planets are there in the outer solar system?"Astronomer Mike Brown". Archived from the original on 2011-10-18. Retrieved 2011-09-23.
  6. ^ a b c d e f g h i j k l m n o p q r s t u Thomas, P. C. (July 2010). "Sizes, shapes, and derived properties of the saturnian satellites after the Cassini nominal mission" (PDF). Icarus. 208 (1): 395–401. Bibcode:2010Icar..208..395T. doi:10.1016/j.icarus.2010.01.025.
  7. ^ "Iapetus' peerless equatorial ridge".
  8. ^ "Uranus Fact Sheet".
  9. ^ Emilio, M.; Kuhn, J. R.; Bush, R. I.; Scholl, I. F. (2012). "Measuring the Solar Radius from Space during the 2003 and 2006 Mercury Transits". The Astrophysical Journal. 750 (2): 135. arXiv:1203.4898. Bibcode:2012ApJ...750..135E. doi:10.1088/0004-637X/750/2/135.
  10. ^ Nimmo, Francis; et al. (2017). "Mean radius and shape of Pluto and Charon from New Horizons images". Icarus. 287: 12–29. arXiv:1603.00821. Bibcode:2017Icar..287...12N. doi:10.1016/j.icarus.2016.06.027.
  11. ^ Sicardy, B.; et al. (2011). "Size, density, albedo and atmosphere limit of dwarf planet Eris from a stellar occultation" (PDF). European Planetary Science Congress Abstracts. 6: 137. Bibcode:2011epsc.conf..137S. Retrieved 2011-09-14.
  12. ^ Brown, Michael E.; Schaller, Emily L. (15 June 2007). "The Mass of Dwarf Planet Eris". Science. 316 (5831): 1585. Bibcode:2007Sci...316.1585B. doi:10.1126/science.1139415. PMID 17569855.
  13. ^ Ortiz, J. L.; Santos-Sanz, P.; Sicardy, B.; et al. (2017). "The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation". Nature. 550 (7675): 219–223. Bibcode:2017Natur.550..219O. doi:10.1038/nature24051. PMID 29022593.
  14. ^ a b c d e Ragozzine, D.; Brown, M. E. (2009). "Orbits and Masses of the Satellites of the Dwarf Planet Haumea (2003 EL61)". The Astronomical Journal. 137 (6): 4766–4776. arXiv:0903.4213. Bibcode:2009AJ....137.4766R. doi:10.1088/0004-6256/137/6/4766.
  15. ^ M.E. Brown (2013). "On the size, shape, and density of dwarf planet Makemake". The Astrophysical Journal Letters. 767 (1): L7(5pp). arXiv:1304.1041. Bibcode:2013ApJ...767L...7B. doi:10.1088/2041-8205/767/1/L7.
  16. ^ Kiss, Csaba; Marton, Gabor; Parker, Alex H.; Grundy, Will; Farkas-Takacs, Aniko; Stansberry, John; Pal, Andras; Muller, Thomas; Noll, Keith S.; Schwamb, Megan E.; Barr, Amy C.; Young, Leslie A.; Vinko, Jozsef (October 2018). "The mass and density of the dwarf planet (225088) 2007 OR10". Icarus. arXiv:1903.05439. Bibcode:2018DPS....5031102K. doi:10.1016/j.icarus.2019.03.013.
    Initial publication at the American Astronomical Society DPS meeting #50, with the publication ID 311.02
  17. ^ a b c d e Fornasier, S.; et al. (6 May 2013). "TNOs are Cool: A survey of the trans-Neptunian region. VIII. Combined Herschel PACS and SPIRE observations of 9 bright targets at 70–500 μm". Astronomy & Astrophysics. 555: A15. arXiv:1305.0449. Bibcode:2013A&A...555A..15F. doi:10.1051/0004-6361/201321329.
  18. ^ Roatsch Jaumann et al. 2009, p. 765, Tables 24.1–2
  19. ^ "Agenda - NASA Exploration Science Forum 2015". Archived from the original on 2015-07-24. Retrieved 2015-07-25.
  20. ^ Rayman, M. D. (28 May 2015). "Dawn Journal, May 28, 2015". Jet Propulsion Laboratory. Archived from the original on 30 May 2015. Retrieved 23 July 2015.
  21. ^ a b c d e f g h i j k l m n o p Wm. Robert Johnston (24 March 2015). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 21 July 2015.
  22. ^ a b c Carry, B.; et al. (2011). "Integral-field spectroscopy of (90482) Orcus-Vanth". Astronomy & Astrophysics. 534: A115. arXiv:1108.5963. Bibcode:2011A&A...534A.115C. doi:10.1051/0004-6361/201117486.
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  132. ^ Descamps, P.; Marchis, F.; et al. (2008). "New determination of the size and bulk density of the binary asteroid 22 Kalliope from observations of mutual eclipses". Icarus. 196 (2): 578–600. arXiv:0710.1471. Bibcode:2008Icar..196..578D. doi:10.1016/j.icarus.2008.03.014.
  133. ^ "JPL Small-Body Database Browser: 566 Stereoskopia (1905 QO)" (2018-10-22 last obs). Retrieved 30 April 2019.
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  135. ^ Anderson, J. D.; Johnson, T. V.; Schubert, G.; Asmar, S.; Jacobson, R. A.; Johnston, D.; Lau, E. L.; Lewis, G.; Moore, W. B.; Taylor, A.; Thomas, P. C.; Weinwurm, G. (27 May 2005). "Amalthea's Density is Less Than That of Water". Science. 308 (5726): 1291–1293. Bibcode:2005Sci...308.1291A. doi:10.1126/science.1110422. PMID 15919987.
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  137. ^ "JPL Small-Body Database Browser: 59 Elpis" (2018-05-15 last obs). Retrieved 30 April 2019.
  138. ^ "JPL Small-Body Database Browser: 386 Siegena (A894 EB)" (2018-09-19 last obs). Retrieved 30 April 2019.
  139. ^ Karkoschka, Erich (2001). "Voyager's Eleventh Discovery of a Satellite of Uranus and Photometry and the First Size Measurements of Nine Satellites". Icarus. 151 (1): 69–77. Bibcode:2001Icar..151...69K. doi:10.1006/icar.2001.6597.
  140. ^ "JPL Small-Body Database Browser: 194 Prokne" (2018-06-26 last obs). Retrieved 30 April 2019.
  141. ^ "JPL Small-Body Database Browser: 185 Eunike" (2018-06-12 last obs). Retrieved 30 April 2019.
  142. ^ "JPL Small-Body Database Browser: 54 Alexandra" (2018-09-10 last obs). Retrieved 30 April 2019.
  143. ^ a b c Johnston, Wm. Robert (20 September 2014). "(385446) Manwe and Thorondor". Johnston's Archive. Retrieved 30 April 2019.
  144. ^ "JPL Small-Body Database Browser: 444 Gyptis (A899 FA)" (2018-06-24 last obs). Retrieved 30 April 2019.
  145. ^ "JPL Small-Body Database Browser: 238 Hypatia" (2018-10-19 last obs). Retrieved 1 May 2019.
  146. ^ "JPL Small-Body Database Browser: 120 Lachesis" (2018-10-22 last obs). Retrieved 30 April 2019.
  147. ^ a b "JPL Small-Body Database Browser: 85 Io" (2018-05-15 last obs). Retrieved 30 April 2019.
  148. ^ "JPL Small-Body Database Browser: 93 Minerva" (2018-10-19 last obs). Retrieved 30 April 2019.
  149. ^ "LCDB Data for (14)". Asteroid Lightcurve Database (LCDB). Retrieved 30 April 2019.
  150. ^ "JPL Small-Body Database Browser: 776 Berbericia (A914 BE)" (2018-10-22 last obs). Retrieved 30 April 2019.
  151. ^ a b "JPL Small-Body Database Browser: 139 Juewa" (2018-10-22 last obs). Retrieved 30 April 2019.
  152. ^ "JPL Small-Body Database Browser: 354 Eleonora (A893 BC)" (2018-09-17 last obs). Retrieved 30 April 2019.
  153. ^ "JPL Small-Body Database Browser: 471 Papagena (A901 LA)" (2018-09-11 last obs). Retrieved 1 May 2019.
  154. ^ a b c Johnston, Wm. Robert (31 January 2015). "1998 WW31 and S/2000 (1998 WW31) 1". Johnston's Archive. Retrieved 4 May 2019.
  155. ^ "JPL Small-Body Database Browser: 95 Arethusa" (2018-10-24 last obs). Retrieved 30 April 2019.
  156. ^ "JPL Small-Body Database Browser: 8 Flora" (2018-05-23 last obs). Retrieved 30 April 2019.
  157. ^ "JPL Small-Body Database Browser: 762 Pulcova (A913 RD)" (2018-10-18 last obs). Retrieved 1 May 2019.
  158. ^ "JPL Small-Body Database Browser: 187 Lamberta" (2018-09-18 last obs). Retrieved 30 April 2019.
  159. ^ "JPL Small-Body Database Browser: 536 Merapi" (2018-10-24 last obs). Retrieved 30 April 2019.
  160. ^ "JPL Small-Body Database Browser: 356 Liguria (A893 BE)" (2018-09-18 last obs). Retrieved 1 May 2019.
  161. ^ "JPL Small-Body Database Browser: 89 Julia" (2018-10-20 last obs). Retrieved 30 April 2019.
  162. ^ "JPL Small-Body Database Browser: 76 Freia" (2018-10-23 last obs). Retrieved 30 April 2019.
  163. ^ "JPL Small-Body Database Browser: 168 Sibylla" (2018-10-22 last obs). Retrieved 30 April 2019.
  164. ^ "JPL Small-Body Database Browser: 196 Philomela" (2018-10-13 last obs). Retrieved 30 April 2019.
  165. ^ "JPL Small-Body Database Browser: 268 Adorea" (2018-10-22 last obs). Retrieved 1 May 2019.
  166. ^ "JPL Small-Body Database Browser: 11 Parthenope" (2018-06-20 last obs). Retrieved 30 April 2019.
  167. ^ "LCDB Data for (361)". Asteroid Lightcurve Database (LCDB). Retrieved 1 May 2019.
  168. ^ "JPL Small-Body Database Browser: 211 Isolda" (2018-10-18 last obs). Retrieved 1 May 2019.
  169. ^ "JPL Small-Body Database Browser: 617 Patroclus (A906 UL)" (2017-06-14 last obs). Retrieved 1 May 2019.
  170. ^ "JPL Small-Body Database Browser: 349 Dembowska (A892 XB)" (2018-10-20 last obs). Retrieved 1 May 2019.
  171. ^ "JPL Small-Body Database Browser: 18 Melpomene" (2018-08-08 last obs). Retrieved 30 April 2019.
  172. ^ "JPL Small-Body Database Browser: 420 Bertholda (A896 RC)" (2018-10-20 last obs). Retrieved 1 May 2019.
  173. ^ "JPL Small-Body Database Browser: 476 Hedwig (A901 QB)" (2018-10-22 last obs). Retrieved 2 May 2019.
  174. ^ "JPL Small-Body Database Browser: 51 Nemausa" (2018-08-02 last obs). Retrieved 30 April 2019.
  175. ^ "JPL Small-Body Database Browser: 69 Hesperia" (2018-10-19 last obs). Retrieved 30 April 2019.
  176. ^ "JPL Small-Body Database Browser: 804 Hispania (A915 FK)" (2018-10-23 last obs). Retrieved 30 April 2019.
  177. ^ "JPL Small-Body Database Browser: 104 Klymene" (2018-10-22 last obs). Retrieved 2 May 2019.
  178. ^ a b "JPL Small-Body Database Browser: 212 Medea" (2018-05-24 last obs). Retrieved 30 April 2019.
  179. ^ "JPL Small-Body Database Browser: 20 Massalia" (2018-04-26 last obs). Retrieved 30 April 2019.
  180. ^ a b "JPL Small-Body Database Browser: 690 Wratislavia (A909 UE))" (2018-07-20 last obs). Retrieved 1 May 2019.
  181. ^ "JPL Small-Body Database Browser: 469 Argentina (A901 DC)" (2018-10-23 last obs). Retrieved 2 May 2019.
  182. ^ "JPL Small-Body Database Browser: 34 Circe" (2018-09-16 last obs). Retrieved 30 April 2019.
  183. ^ "JPL Small-Body Database Browser: 147 Protogeneia" (2018-05-22 last obs). Retrieved 1 May 2019.
  184. ^ "JPL Small-Body Database Browser: 283 Emma" (2018-09-16 last obs). Retrieved 1 May 2019.
  185. ^ "JPL Small-Body Database Browser: 705 Erminia (A910 TE)" (2018-08-01 last obs). Retrieved 1 May 2019.
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  187. ^ "JPL Small-Body Database Browser: 46 Hestia" (2018-10-20 last obs). Retrieved 2 May 2019.
  188. ^ "JPL Small-Body Database Browser: 618 Elfriede (A906 UM)" (2018-10-03 last obs). Retrieved 2 May 2019.
  189. ^ a b "JPL Small-Body Database Browser: 247 Eukrate" (2018-08-27 last obs). Retrieved 1 May 2019.
  190. ^ "JPL Small-Body Database Browser: 171 Ophelia" (2018-10-22 last obs). Retrieved 2 May 2019.
  191. ^ Ostro, Steven J.; Hudson, R. Scott; Nolan, Michael C.; Margot, Jean-Luc; Scheeres, Daniel J.; Campbell, Donald B.; et al. (May 2000). "Radar Observations of Asteroid 216 Kleopatra". Science. 288 (5467): 836–839. Bibcode:2000Sci...288..836O. doi:10.1126/science.288.5467.836. Retrieved 21 March 2018.
  192. ^ "JPL Small-Body Database Browser: 588 Achilles (A906 DN)" (2018-10-22 last obs). Retrieved 1 May 2019.
  193. ^ "JPL Small-Body Database Browser: 360 Carlova (A893 EE)" (2018-08-18 last obs). Retrieved 2 May 2019.
  194. ^ "JPL Small-Body Database Browser: 350 Ornamenta (A892 XC)" (2018-10-22 last obs). Retrieved 2 May 2019.
  195. ^ "JPL Small-Body Database Browser: 308 Polyxo" (2018-06-20 last obs). Retrieved 1 May 2019.
  196. ^ "JPL Small-Body Database Browser: 200 Dynamene" (2018-08-18 last obs). Retrieved 2 May 2019.
  197. ^ "JPL Small-Body Database Browser: 70 Panopaea" (2018-10-18 last obs). Retrieved 30 April 2019.
  198. ^ "JPL Small-Body Database Browser: 381 Myrrha (A894 AC)" (2018-10-19 last obs). Retrieved 2 May 2019.
  199. ^ "LCDB Data for (426)". Asteroid Lightcurve Database (LCDB). Retrieved 2 May 2019.
  200. ^ "JPL Small-Body Database Browser: 279 Thule" (2018-10-10 last obs). Retrieved 2 May 2019.
  201. ^ "JPL Small-Body Database Browser: 772 Tanete (A913 YD)" (2018-06-11 last obs). Retrieved 2 May 2019.
  202. ^ "JPL Small-Body Database Browser: 92 Undina" (2018-10-20 last obs). Retrieved 2 May 2019.
  203. ^ "JPL Small-Body Database Browser: 111 Ate" (2018-10-23 last obs). Retrieved 30 April 2019.
  204. ^ Grundy, W. M.; Noll, K. S.; Nimmo, F.; Roe, H. G.; Buie, M. W.; Porter, S. B.; Benecchi, S. D.; Stephens, D. C.; Levison, H. F.; Stansberry, J. A. (2011). "Five new and three improved mutual orbits of transneptunian binaries" (pdf). Icarus. 213 (2): 678. arXiv:1103.2751. Bibcode:2011Icar..213..678G. doi:10.1016/j.icarus.2011.03.012.
  205. ^ "JPL Small-Body Database Browser: 173 Ino" (2018-09-10 last obs). Retrieved 30 April 2019.
  206. ^ "JPL Small-Body Database Browser: 388 Charybdis (A894 ED)" (2018-10-20 last obs). Retrieved 2 May 2019.
  207. ^ "JPL Small-Body Database Browser: 159 Aemilia" (2018-10-22 last obs). Retrieved 2 May 2019.
  208. ^ a b "JPL Small-Body Database Browser: 203 Pompeja" (2018-10-02 last obs). Retrieved 2 May 2019.
  209. ^ "JPL Small-Body Database Browser: 344 Desiderata (A892 WA)" (2018-10-24 last obs). Retrieved 1 May 2019.
  210. ^ "JPL Small-Body Database Browser: 712 Boliviana (A911 FF)" (2018-10-13 last obs). Retrieved 2 May 2019.
  211. ^ "JPL Small-Body Database Browser: 357 Ninina (A893 CB)" (2018-10-20 last obs). Retrieved 3 May 2019.
  212. ^ "JPL Small-Body Database Browser: 410 Chloris (A896 AC)" (2018-07-08 last obs). Retrieved 2 May 2019.
  213. ^ "JPL Small-Body Database Browser: 68 Leto" (2018-07-24 last obs). Retrieved 2 May 2019.
  214. ^ Sheppard, Scott S.; Jewitt, David C. (2004). "Extreme Kuiper Belt Object 2001 QG298 and the Fraction of Contact Binaries". The Astronomical Journal. 4127 (5): 3023–3033. arXiv:astro-ph/0402277. Bibcode:2004AJ....127.3023S. doi:10.1086/383558.
  215. ^ "JPL Small-Body Database Browser: 56 Melete" (2018-05-05 last obs). Retrieved 2 May 2019.
  216. ^ "JPL Small-Body Database Browser: 28 Bellona" (2018-10-18 last obs). Retrieved 30 April 2019.
  217. ^ "JPL Small-Body Database Browser: 78 Diana" (2018-10-22 last obs). Retrieved 2 May 2019.
  218. ^ "JPL Small-Body Database Browser: 514 Armida (A903 QC)" (2018-08-02 last obs). Retrieved 3 May 2019.
  219. ^ "JPL Small-Body Database Browser: 150 Nuwa" (2018-10-22 last obs). Retrieved 30 April 2019.
  220. ^ "JPL Small-Body Database Browser: 490 Veritas (A902 RE)" (2018-07-11 last obs). Retrieved 2 May 2019.
  221. ^ "JPL Small-Body Database Browser: 3317 Paris (1984 KF)" (2018-07-08 last obs). Retrieved 30 April 2019.
  222. ^ "JPL Small-Body Database Browser: 74 Galatea" (2018-05-22 last obs). Retrieved 2 May 2019.
  223. ^ "JPL Small-Body Database Browser: 1867 Deiphobus (1971 EA)" (2018-06-21 last obs). Retrieved 2 May 2019.
  224. ^ "JPL Small-Body Database Browser: 1172 Aneas (1930 UA)" (2018-07-03 last obs). Retrieved 1 May 2019.
  225. ^ "JPL Small-Body Database Browser: 1437 Diomedes (1937 PB)" (2018-10-22 last obs). Retrieved 30 April 2019.
  226. ^ "JPL Small-Body Database Browser: 81 Terpsichore" (2018-10-22 last obs). Retrieved 2 May 2019.
  227. ^ "JPL Small-Body Database Browser: 791 Ani" (2018-09-21 last obs). Retrieved 3 May 2019.
  228. ^ "JPL Small-Body Database Browser: 1093 Freda (1925 LA)" (2018-05-24 last obs). Retrieved 2 May 2019.
  229. ^ "JPL Small-Body Database Browser: 909 Ulla (A919 CA)" (2018-09-20 last obs). Retrieved 2 May 2019.
  230. ^ "JPL Small-Body Database Browser: 127 Johanna" (2018-10-19 last obs). Retrieved 2 May 2019.
  231. ^ "JPL Small-Body Database Browser: 181 Eucharis" (2018-10-22 last obs). Retrieved 3 May 2019.
  232. ^ "JPL Small-Body Database Browser: 12 Victoria" (2018-09-09 last obs). Retrieved 30 April 2019.
  233. ^ "JPL Small-Body Database Browser: 276 Adelheid" (2018-10-18 last obs). Retrieved 2 May 2019.
  234. ^ "JPL Small-Body Database Browser: 1143 Odysseus (1930 BH)" (2018-10-22 last obs). Retrieved 2 May 2019.
  235. ^ "JPL Small-Body Database Browser: 2241 Alcathous (1979 WM)" (2018-06-17 last obs). Retrieved 2 May 2019.
  236. ^ "JPL Small-Body Database Browser: 545 Messalina (A904 TC)" (2018-10-22 last obs). Retrieved 2 May 2019.
  237. ^ "JPL Small-Body Database Browser: 57 Mnemosyne" (2018-06-25 last obs). Retrieved 30 April 2019.
  238. ^ "JPL Small-Body Database Browser: 659 Nestor (A908 FE)" (2018-10-22 last obs). Retrieved 2 May 2019.
  239. ^ "JPL Small-Body Database Browser: 3063 Makhaon (1983 PV)" (2018-10-22 last obs). Retrieved 2 May 2019.
  240. ^ "JPL Small-Body Database Browser: 230 Athamantis" (2018-09-16 last obs). Retrieved 3 May 2019.
  241. ^ "JPL Small-Body Database Browser: 788 Hohensteina (A914 HE)" (2018-06-14 last obs). Retrieved 3 May 2019.
  242. ^ "JPL Small-Body Database Browser: 40 Harmonia" (2018-09-15 last obs). Retrieved 3 May 2019.
  243. ^ "JPL Small-Body Database Browser: 602 Marianna (A906 DJ)" (2018-10-23 last obs). Retrieved 2 May 2019.
  244. ^ "JPL Small-Body Database Browser: 86 Semele" (2018-10-14 last obs). Retrieved 2 May 2019.
  245. ^ a b "JPL Small-Body Database Browser: 140 Siwa" (2018-10-22 last obs). Retrieved 3 May 2019.
  246. ^ "JPL Small-Body Database Browser: 1583 Antilochus (1950 SA)" (2018-10-22 last obs). Retrieved 2 May 2019.
  247. ^ "JPL Small-Body Database Browser: 37 Fides" (2018-10-16 last obs). Retrieved 2 May 2019.
  248. ^ "JPL Small-Body Database Browser: 663 Gerlinde (A908 MB)" (2018-10-24 last obs). Retrieved 3 May 2019.
  249. ^ "JPL Small-Body Database Browser: 23 Thalia" (2018-10-21 last obs). Retrieved 2 May 2019.
  250. ^ "JPL Small-Body Database Browser: 521 Brixia (A904 AE)" (2018-07-24 last obs). Retrieved 2 May 2019.
  251. ^ "JPL Small-Body Database Browser: 176 Iduna" (2018-10-15 last obs). Retrieved 2 May 2019.
  252. ^ "JPL Small-Body Database Browser: 62 Erato" (2018-05-24 last obs). Retrieved 3 May 2019.
  253. ^ "JPL Small-Body Database Browser: 5 Astraea" (2018-09-16 last obs). Retrieved 30 April 2019.
  254. ^ "JPL Small-Body Database Browser: 506 Marion (A903 DB)" (2018-10-23 last obs). Retrieved 3 May 2019.
  255. ^ "JPL Small-Body Database Browser: 229 Adelinda" (2018-06-26 last obs). Retrieved 3 May 2019.
  256. ^ "JPL Small-Body Database Browser: 1269 Rollandia (1930 SH)" (2018-10-20 last obs). Retrieved 3 May 2019.
  257. ^ "JPL Small-Body Database Browser: 739 Mandeville (A913 CH)" (2018-10-24 last obs). Retrieved 3 May 2019.
  258. ^ "JPL Small-Body Database Browser: 91 Aegina" (2018-07-31 last obs). Retrieved 3 May 2019.
  259. ^ "JPL Small-Body Database Browser: 35 Leukothea" (2018-10-22 last obs). Retrieved 3 May 2019.
  260. ^ "LCDB Data for (617)". Asteroid Lightcurve Database (LCDB). Retrieved 1 May 2019.
  261. ^ "JPL Small-Body Database Browser: 814 Tauris (A916 AE)" (2018-07-16 last obs). Retrieved 3 May 2019.
  262. ^ "JPL Small-Body Database Browser: 522 Helga (A904 AF)" (2018-10-22 last obs). Retrieved 3 May 2019.
  263. ^ "JPL Small-Body Database Browser: 387 Aquitania (A894 EC)" (2018-10-18 last obs). Retrieved 3 May 2019.
  264. ^ "JPL Small-Body Database Browser: 1208 Troilus (1931 YA)" (2018-07-22 last obs). Retrieved 2 May 2019.
  265. ^ a b "JPL Small-Body Database Browser: 164 Eva" (2018-10-20 last obs). Retrieved 3 May 2019.
  266. ^ Chamberlin, Alan. "JPL Small-Body Database Search Engine".
  267. ^ "JPL Small-Body Database Browser: 233 Asterope" (2018-10-24 last obs). Retrieved 3 May 2019.
  268. ^ "JPL Small-Body Database Browser: 192 Nausikaa" (2018-08-30 last obs). Retrieved 3 May 2019.
  269. ^ Sierks, H.; Lamy, P.; Barbieri, C.; Koschny, D.; Rickman, H.; Rodrigo, R.; a'Hearn, M. F.; Angrilli, F.; Barucci, M. A.; Bertaux, J. - L.; Bertini, I.; Besse, S.; Carry, B.; Cremonese, G.; Da Deppo, V.; Davidsson, B.; Debei, S.; De Cecco, M.; De Leon, J.; Ferri, F.; Fornasier, S.; Fulle, M.; Hviid, S. F.; Gaskell, R. W.; Groussin, O.; Gutierrez, P.; Ip, W.; Jorda, L.; Kaasalainen, M.; Keller, H. U. (2011). "Images of Asteroid 21 Lutetia: A Remnant Planetesimal from the Early Solar System". Science. 334 (6055): 487–490. Bibcode:2011Sci...334..487S. doi:10.1126/science.1207325. hdl:1721.1/110553. PMID 22034428.
  270. ^ M. Pätzold; T. P. Andert; S. W. Asmar; J. D. Anderson; J.-P. B