List of Solar System objects by size

Objects in the Solar System
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The image is of the masses of the heaviest objects

This is a list of Solar System objects by size, arranged in descending order of mean volumetric radius. The list can also be partially sorted according to an object's mass and, for the largest objects, volume, density and surface gravity. This list contains the Sun, the planets, many of the larger small Solar System bodies (such as dwarf planets and 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 bigger than Neptune but less massive, and although Ganymede and Titan are larger than Mercury, they have less than half its 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. These are dubbed "regular". Objects made of ice become regular more easily than those made of rock, and many icy objects are spheroidal at far lower sizes. The cutoff boundary for regularity 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 equilibrium oblate spheroid due to their gravity, while 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, but a characteristic feature of the "irregular"-shaped bodies is that there is a significant difference in the length of their two equatorial diameters.

There can be difficulty in figuring out 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 "unreferenced wiki-assumed" masses/densities. Many TNOs are just assumed to have a density of 2.0 g/cm³, though it is just as likely that they have a comet-like density of only 0.5 g/cm³.^[2] Thus most provisional TNOs are not given an M_Earth value to prevent from cluttering the list with too many assumptions that could be off by an order of magnitude. 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, still have unknown masses with assumed densities.^[3] Again, as we get further from the Sun than Saturn, things get less clear. There has not yet been an orbiter around Uranus or Neptune for long-term study of the 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 if it has been visited by a probe.

• 

  The relative masses of the bodies of the Solar System. Objects smaller than Saturn are not visible at this scale.

• 

  The relative masses of the Solar planets. Jupiter at 71% of the total and Saturn at 21% dominate the system. Mercury and Mars, which together are less than 0.1%, are not visible at this scale.

• 

  The relative masses of the solid bodies of the Solar System. Earth at 48% and Venus at 39% dominate. Bodies less massive than Pluto are not visible at this scale.

List

Objects above ≈300 km in radius

Anything above this size is probably in "hydrostatic equilibrium", but some bodies near the end of this list may not. However, their predicted or measured size would need to be "grossly in error" or their composition primarily rocky, for them not to be.^[5] A lot of the values are manually calculated assuming sphericity. Size may or may not include an object's atmosphere. The diameter of Saturn's rings is around 364,900 km, much wider than Jupiter, but its gaseous sphere is smaller.

Body	Image	Mean radius (km)	Mean radius (R⊕)	Volume (109 km3)	Volume (V⊕)	Mass ×1021 kg (Yg)	Mass (M⊕)	Density[6] g/cm3	Surface gravity (m/s2)	Surface gravity (⊕)	Type of object	Shape
Sun		696,000	109.25	1,412,000,000	1,303,781	1,989,100,000	332,837	1.409	274.0	28.02	Star	regular
Jupiter		69,911	10.97	1,431,280	1,321	1,898,600	317.83	1.33	24.79	2.535	Planet	regular
Saturn		58,232 (w/o rings)	9.14	827,130	764	568,460	95.159	0.70	10.445	1.06	Planet	regular
Uranus		25,362	3.98	68,340	63.1	86,832	14.536	1.30	8.87	0.90	Planet	regular
Neptune		24,622	3.86	62,540	57.7	102,430	17.147	1.76	11.15	1.140	Planet	regular
Earth		6,371.0	1	1,083.21	1	5,973.6	1	5.515	9.78033	1	Planet	regular
Venus		6,051.8 (w/o gas)	0.950	928.43	0.857	4,868.5	0.815	5.24	8.872	0.91	Planet	regular
Mars		3,390.0	0.532	163.18	0.151	641.85	0.107	3.94	3.7	0.38	Planet	regular
Ganymede† Jupiter III		2,631.2	0.413	76.30	0.0704	148.2	0.0248	1.936	1.428	0.15	Satellite of Jupiter	regular
Titan† Saturn VI		2,576[7] (w/o gas)	0.404	71.52	0.0660	134.5	0.0225	1.88	1.354	0.14	Satellite of Saturn	regular
Mercury		2,439.7	0.383	60.83	0.0562	330.2	0.0553	5.43	3.7	0.38	Planet	regular
Callisto† Jupiter IV		2,410.3	0.378	58.65	0.0541	107.6	0.018	1.83	1.23603	0.126	Satellite of Jupiter	regular
Io† Jupiter I		1,821.5	0.286	25.32	0.0234	89.3	0.015	3.528	1.797	0.183	Satellite of Jupiter	regular
Moon		1,737.1	0.273	21.958	0.0203	73.5	0.0123	3.3464	1.625	0.166	Satellite of Earth	regular
Europa† Jupiter II		1,561	0.245	15.93	0.0147	48	0.00803	3.01	1.316	0.134	Satellite of Jupiter	regular
Triton† Neptune I		1,353.4	0.212	10.38	0.0096	21.5	0.00359	2.061	0.782	0.0797	Satellite of Neptune	regular
ErisR 136199		1,163[8]	0.182	7	0.007	16.7[9]	0.0027	2.25	0.662	0.0677	Dwarf planet — SDO — binary	regular
PlutoR 134340		1,161[10] (w/o gas)	0.181	7.15	0.0066	13.105	0.0022	2.0	0.61	0.062	Dwarf planet — KBO	regular
Titania‡ Uranus III		788.9	0.124	2.06	0.0019	3.526	0.00059	1.72	0.378	0.0385	Satellite of Uranus	regular
Rhea‡ Saturn V		764.1[11]	0.12	1.87	0.0017	2.3166	0.00039	1.23	0.26	0.027	Satellite of Saturn	regular
Oberon† Uranus IV		761.4	0.12	1.85	0.0017	3.014	0.0005	1.63	0.347	0.035	Satellite of Uranus	regular
Iapetus† Saturn VIII		735.6[12]	0.113	1.55	0.0014	1.9739	0.00033	1.08	0.223	0.0227	Satellite of Saturn	regular
MakemakeRA 136472		710[13]	0.126 –0.157	1.8	0.002	3	0.00067	2.0	0.4	0.04	Dwarf planet — KBO	regular
Charon† Pluto I		603.5[14]	0.095	0.87	0.0008	1.52	0.00025	1.65	0.279	0.028	Satellite of Pluto	regular
SednaRA 90377		600–800[15]	0.09 –0.14	1.73	0.0016	3	0.00050	2.0	0.33 –0.50	0.0337 –0.0511	Detached object	unknown
2007 OR10 225088 "Snow White"		≈600[16]–710[5]	0.094	0.904	0.0008	1.81P	0.0003	2.0P	0.168	0.017	SDO	unknown
Umbriel† Uranus II		584.7	0.092	0.84	0.0008	1.2	0.00020	1.4	0.234	0.024	Satellite of Uranus	regular
Ariel ‡ Uranus I		578.9	0.091	0.81	0.0008	1.35	0.00022	1.67	0.269	0.027	Satellite of Uranus	regular
HaumeaR 136108		575[17]–750[5]	0.117	1.3–1.6	0.001	4.006	0.00069	2.551[18]	0.44	0.045	Dwarf planet — KBO — trinary	regular (scalene ellipsoid)
Dione† Saturn IV		561.6	0.088	0.73	0.0007	1.096	0.000183	1.48	0.232	0.0236	Satellite of Saturn	regular
Tethys‡ Saturn III		533	0.083	0.624	0.0006	0.6173	0.000103	1.15	0.145	0.015	Satellite of Saturn	regular
Ceres‡ 1		475	0.076	0.437	0.0004	0.95	0.000159	2.08	0.27	0.0275	Dwarf planet — Asteroid	regular
Quaoar 50000		445[19]	0.07	0.37	0.0003	1.6[19]	0.0003	4.2[19]	0.125	0.013	KBO — Cubewano — binary	unknown
OrcusRA 90482		425[13]	0.069 –0.08	0.4	0.0004	0.63A	0.0001	1.5	0.234	0.023	KBO — Plutino — binary	unknown
2002 TC302R 84522		410–570[20]	0.09	0.786	0.0007	1.573P	0.00026	2.0	0.321	0.033	KBO — 2:5 resonance	unknown
2007 UK1269 229762		375[5]	0.069	0.354	0.0003	0.708P	0.0001	2.0	0.246	0.025	SDO	unknown
2005 UQ5139 202421		375[5]	0.074	0.443	0.0004	0.886P	0.0001	2.0	0.278	0.0284	KBO — Cubewano	unknown
2003 MW129 174567		375[5]	0.0658	0.308	0.0003	0.616P	0.0001	2.0	0.228	0.02	KBO	unknown
2002 AW197R 55565		370[5]	0.0576	0.207	0.00019	0.414P	0.000069	2.0	0.206	0.0211	KBO[21]	unknown
2005 QU1829 303775		365[5]	0.082	0.606	0.00056	1.21P	0.0002	2.0	0.294	0.03	SDO[22]	unknown
2002 MS4		360[5]R	0.057	0.203	0.00018	0.4005P	0.000067	2.0P	0.204	0.02086	KBO[21]	unknown
2007 JJ43 278361		350[5]									TNO[21]	unknown
2003 AZ84R 208996		345[5]	0.0538	0.169	0.000156	0.53P	5.66 E-5	2.0P	0.172	0.02	KBO — Plutino — binary	unknown
2010 EK139		340[5]									SDO	unknown
2002 UX25R 55637		340[5]	0.0535	0.166	0.000153	0.331P	0.0000554	2.0	0.191	0.01952	KBO — binary	unknown
2004 GV9R 90568		340[5]	0.0531	0.162	0.00015	0.325P	0.0000534	2.0	0.19	0.0194	KBO	unknown
2006 QH1819		340[5]	0.06	0.233	0.000215	0.467P	0.00008	2.0	0.214	0.022	SDO	unknown
2005 RN439 145452		330[5]	0.0573	0.2036	0.00019	0.407P	0.000068	2.0	0.205	0.02096	KBO[21]	unknown
2010 KZ39		330[5]									Detached object[23] or Cubewano[24]	unknown
IxionRA 28978		325[5]	0.051	0.144	0.000133	0.3	5.0E-5	2.086	0.19	0.021	KBO	unknown
2004 XA192 230965		320[5]	0.055	0.177	0.00016	0.354P	0.000059	2.0	0.195	0.02	TNO[21]	unknown
2003 VS2 84922		315[5]	0.057	0.203	0.00018	0.4005P	0.000067	2.0	0.204	0.02086	KBO — Plutino[21]	unknown
2001 UR1639 42301		305[5]	0.05	0.134	0.00012	0.269P	0.000045	2.0P	0.178	0.018	SDO[21]	unknown
Salacia 120347		305[5]	0.0455	0.102	0.00009	0.2P	0.000034	2.0P	0.159	0.016	KBO — binary	unknown
2010 RE64		305[5]									KBO	unknown
SDO	unknown
KBO — Plutino	unknown
2003 UZ4139		300[5]	0.048	0.116	0.00012	0.33P	0.000055	2.0P	0.241	0.0246	KBO — Plutino	unknown
2008 ST291		300[5]									SDO	unknown
KBO — Cubewano	unknown

Selected objects between ≈300 and ≈200 km in radius

Satellites in this size range tend to be round (although Proteus is not), and TNOs are expected to be as well, assuming the estimated size is correct. The asteroid 10 Hygiea is not, and 2 Pallas and 4 Vesta are borderline.

Body	Image	Mean radius (km)	Mean radius (R⊕)	Volume (109 km3)	Volume (V⊕)	Mass ×1021 kg (Yg)	Mass (M⊕)	Density[25] g/cm3	Surface gravity (m/s2)	Surface gravity (⊕)	Type of object	Shape
Varuna* 20000		250[5]	0.049	0.125	0.000115	0.37	6.2E-5	0.992[18]	0.258	0.028	KBO	unknown
2005 RM439 145451		290[26]	0.0455	0.102	0.00009	0.2P	0.000034	2.0P	0.159	0.016	KBO	unknown
2004 NT33		290[21]	0.043	0.089	0.000082	0.178P	0.000029	2.0P	0.155	0.0158	KBO — Cubewano[21]	unknown
1996 TL66RA 15874		287.5	0.045	0.1	9.2E-5	0.2	3.3E-5	2.009	0.162	0.018[5]	SDO	unknown
2004 UX10 144897		284.5[5]	0.039	0.065	0.00006	0.13P	0.000022	2.0P	0.139	0.014	KBO	unknown
2004 XR190 "Buffy"		277[21]*	0.059	0.221	0.0002	0.4416P	0.00007	2.0P	0.21	0.0215	SDO[21]	unknown
2004 TY364* 120348		277[21]	0.043	0.089	0.000082	0.178P	0.000029	2.0P	0.155	0.0158	KBO[21]	unknown
HuyaR 38628		266[20]	0.04175	0.0788	0.000073	0.158P	0.00026	2.0P	0.15	0.015	KBO — Plutino	unknown
Pallas$ 2		266[27]	0.042	0.078	0.00007	0.211	0.0000353	2.8[28]	0.2	0.02	Asteroid	uncertain
Vesta$ 4		264.6	0.042	0.078	0.00007	0.262	0.0000438	3.42[29]	0.251	0.0256	Asteroid	regular?
KBO	unknown
2003 QX113		252.5[21]	0.036	0.051	0.00005	0.102P	0.000017	2.0P	0.129	0.013	SDO[21]	unknown
Enceladus‡ Saturn II		252.1	0.039	0.067	0.00006	0.108	0.0000181	1.61	0.111	0.0113	Satellite of Saturn	regular
2006 HH123		239[5]	0.031	0.0335	0.000011	0.067P	0.000011	2.0	0.112	0.011	Centaur[21]	unknown
Miranda‡ Uranus V		235.8	0.037	0.055	0.00005	0.0659	0.000011	1.20	0.0791	0.00806	Satellite of Uranus	regular
1999 DE9 26375		230.5[20]	0.036	0.051	0.000047	0.1026P	0.000017	2.0	0.129	0.013	KBO	unknown
Chaos* 19521		230–372.5[22]	0.0585	0.216	0.0002	0.4328P	0.00007	2.0P	0.209	0.021	KBO — Cubewano	unknown
1998 SN165* 35671		230[26]	0.036	0.05	0.000046	0.1P	0.000017	2.0	0.128	0.013	KBO	unknown
2002 XV93		220[21]	0.036	0.051	0.00005	0.102P	0.000017	2.0	0.129	0.013	Plutino[21]	unknown
2003 FY128* 120132		220[21]	0.0345	0.0446	0.00004	0.089P	0.000014	2.0	0.123	0.0126	SDO[21]	unknown
2000 YW134* 82075		215.5[21]	0.039	0.065	0.00006	0.13P	0.000022	2.0P	0.139	0.014	SDO[21]	unknown
1999 CD158		210[21]	0.0345	0.0446	0.00004	0.089P	0.000014	2.0	0.123	0.0126	KBO	unknown
Proteus ‡A Neptune VIII (8)		210	0.033	0.038	0.000035	0.050	0.00000844	1.3[30]	0.0666	0.00678	Satellite of Neptune	irregular
2001 QF298		210[21]*	0.04	0.067	0.00006	0.134P	0.000022	2.0	0.141	0.014	Plutino[21]	unknown
10 Hygiea$		203.6[31]	0.03	0.04	3.0E-5	0.0885	1.0E-5	2.5	0.143	0.02	Asteroid	irregular
2002 WC19 119979		200.5[32]	0.0315	0.034	0.00003	0.0675P	0.000011	2.0	0.113	0.0115	KBO — binary	unknown
1996 GQ21* 26181		200.5[21]	0.031	0.0335	0.000011	0.067P	0.000011	2.0	0.112	0.011	SDO[21]	unknown
Mimas‡ Saturn I		198.3	0.031	0.033	0.00003	0.03749	0.0000063	1.15	0.06363	0.00648	Satellite of Saturn	regular

Selected objects between 200 and 100 km in radius

Objects between 200 and 100 km in radius (400 and 200 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 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, with existing instruments, to directly measure their sizes. Values relative to Earth are not included beyond this point. Mass switches from 10²¹ kg to 10¹⁸ kg (Zg), with Mimas double listed as example of unit shift. 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).^[33] This is not complete, missing many poorly known TNOs.^[34]

Satellites of Jupiter

Satellites of Saturn

Satellites of Uranus

Satellites of Neptune

Body	Image	Mean radius (km)	Mass ×1018 kg (Zg)	Type of object	Shape
Mimas‡ Saturn I		198.3	37.49	Satellite of Saturn	regular
2003 QW90		191.5[22]	89P	Kuiper belt object	unknown
KBO	unknown
(15789) 1993 SC		181.5[22]		Trans-Neptunian object — plutino[22]	unknown
(145480) 2005 TB190		186.25 [35]		Detached object	unknown
(48639) 1995 TL8*		175		Kuiper belt object — binary	unknown
Nereid A Neptune II		170	31	Satellite of Neptune	irregular
148780 Altjira 9		170[22]		Trans-Neptunian object — cubewano	unknown
Trans-Neptunian object — plutino	unknown
704 Interamnia M		158.31[36]	37	Main-belt asteroid — F-type	unknown
Hiʻiaka Haumea I		155	20	Satellite of Haumea	unknown
1995 SN55* (lost)		155		Centaur	unknown
(79360) 1997 CS299		152.5[22]		Kuiper belt object — binary	unknown
(79978) 1999 CC1589		152[22]		Scattered-disc object	unknown
(40314) 1999 KR169		152		Trans-Neptunian object	unknown
52 Europa$		150.4	16.5	Main-belt asteroid — C-type	irregular[37]
511 Davida$		144.7	43.8	Main-belt asteroid — C-type	irregular
(55636) 2002 TX300		143[38]	12	Kuiper belt object—Haumea family	unknown
(47171) 1999 TC36(A1)		143[39]		Kuiper belt object — Trinary (A1+A2+B)	unknown
87 Sylvia$		142.8	14.78	Outer main-belt asteroid — X-type — trinary	irregular[37]
Vanth Orcus I		140–190		Satellite of Orcus	unknown
(26308) 1998 SM165		139.9[20]	14	Kuiper belt object — binary	unknown
65 Cybele$		136.5[40] 2004 118.7[41] IRAS	17.8	Outer main-belt asteroid — C-type	irregular
Hyperion Saturn VII		135[3]	5.58	Satellite of Saturn	irregular
(47171) 1999 TC36(A2)		132.5[39]		Kuiper belt object — Trinary (A1+A2+B)	unknown
2005 PU219		132.5[22]		Scattered-disc object	unknown
(79983) 1999 DF99		132.5		Trans-Neptunian object — cubewano	unknown
107 Camilla$		129.4	11.2	Outer main-belt asteroid — C-type — binary	irregular[42]
10199 Chariklo		129.3 [20]		Centaur	unknown
31 EuphrosyneM		128	6.23	Main-belt asteroid — C-type	unknown
15 Eunomia$		127.7[43]	31.2	Main-belt asteroid — S-type	irregular[37]
(148209) 2000 CR105*A		126.5[44]	13	Detached object	unknown
(145453) 2005 RR43		126 348.4[44]		Kuiper belt object—Haumea family	unknown
(119878) 2002 CY224		121[22]	15	Scattered disc object	unknown
3 Juno $		116.96[36]	26.7	Main-belt asteroid — S-type	irregular[37]
2060 Chiron*A 95P/Chiron		116.7	10	Centaur	unknown
88 Thisbe $		116[45]	10.5 M	Main-belt asteroid — B-type	irregular[42]
(120178) 2003 OP32		115		Kuiper belt object — Haumea family	unknown
2004 VN1129		115		Scattered-disc object	unknown
Kuiper belt object	unknown
324 BambergaM		114	10	Main-belt asteroid — C-type	unknown
451 Patientia		112.5		Main-belt asteroid	unknown
19 Fortuna $		112.5[47]	12.7	Main-belt asteroid — G-type	unknown
532 Herculina		111		Main-belt asteroid — S-type	irregular[37]
48 Doris		110.9[48]	17A	Main-belt asteroid	irregular
375 Ursula		108 [49]		Main-belt asteroid	unknown
45 EugeniaM		107	5.69	Main-belt asteroid — F-type — trinary	irregular[37]
Phoebe $ Saturn IX		106.6	8.29	Satellite of Saturn	irregular
29 Amphitrite$		106	11.8	Main-belt asteroid — S-type	irregular[37]
53311 Deucalion		105.5[22]		Trans-Neptunian object — cubewano	unknown
(33001) 1997 CU29		105.5		Trans-Neptunian object — cubewano	unknown
423 DiotimaA		104.385[36]	16	Main-belt asteroid — C-type	irregular[50]
(181902) 1999 RD215		104.33[22]		Scattered disc object	unknown
13 EgeriaM		103.82[36]	16.3	Main-belt asteroid — G-type	unknown
54598 Bienor		103.5[51]		Centaur	unknown
94 Aurora		102.5		Main-belt asteroid	irregular[52]
624 HektorA		101.5[53]	14	Asteroid — Jupiter Trojan — binary	irregular
38083 Rhadamanthus		100.5[22]		Kuiper belt object	unknown
(19308) 1996 TO66		100		Kuiper belt object — Haumea family	unknown

Selected objects between 100 and 50 km in radius

Objects 100 and 50 km in radius (200 km to 100 km in average diameter). This currently includes most objects in the asteroid belt and moons of the gas giants in this size range, but is missing many newly discovered objects in the outer Solar System such as here.^[34] Asteroid spectral types are mostly Tholen, but some might be SMASS.

Body	Image	Mean radius (km)	Mass ×1018 kg (Zg)	Type of object
7 Iris$		99.915 [54]	13.6	Main-belt asteroid — S-type
24 Themis M		99	11.3	Main-belt asteroid — C-type — Themis
702 Alauda		97.4[36]	6.05	Main-belt asteroid — C-type — binary
LarissaA Neptune VII (7)		97	4.2	Satellite of Neptune
(85633) 1998 KR65		96[22]		Kuiper belt object — cubewano
121 HermioneM		95	5.38	Outer main-belt asteroid — C-type — binary
Actaea Salacia I		95		Satellite of 120347 Salacia
372 Palma		94.31[55]		Main-belt asteroid
128 Nemesis		94.1	7	Main-belt asteroid — C-type
16 Psyche$		93.0	21.9	Main-belt asteroid — M-type
6 Hebe $		92.59[36]	12.8	Main-belt asteroid — S-type
5145 Pholus		92.5[56]	6.6	Centaur
154 Bertha		92.47[36]	5.2	Main-belt asteroid — C-type
76 Freia		91.83	6.5	Outer main-belt asteroid — Cybele
(59358) 1999 CL1589		91.5		Trans-Neptunian object — unstable
130 ElektraM		91.1[36]	6.6	Asteroid — G-type — binary
(119951) 2002 KX14		90[21]		Trans-Neptunian object[21]
Janus$ Saturn X (10)		89.4	1.912	Satellite of Saturn
259 Aletheia		89.3[36]	5.97	Main-belt asteroid
Galatea Neptune VI (6)		88[3]	2.12	Satellite of Neptune
88611 Teharonhiawako		88[22]		Trans-Neptunian object — cubewano — binary
42355 Typhon		87.5[20]		Trans-Neptunian object — binary
(19255) 1994 VK8		87.5[22]	5.6	Trans-Neptunian object — cubewano
120 Lachesis		87.05[36]	5.5	Main-belt asteroid
65489 Ceto		87[57]	5.4[57]	Centaur — TNO — binary
(24835) 1995 SM55		87		Kuiper belt object — Haumea family
41 Daphne		87		Main-belt asteroid
9 Metis$		86.9	11.3	Main-belt asteroid
747 Winchester		85.86[36]		Asteroid
153 Hilda		85.32[36]	5.2	Main-belt asteroid — Hildas
790 Pretoria		85.2[58]		Outer main-belt asteroid — Cybele
Himalia M Jupiter VI (6)		85[3]–92[59]	4.19 [60]	Satellite of Jupiter — Himalia group
Namaka Haumea II		85	2	Satellite of Haumea
96 Aegle		84.95	5.1	Main-belt asteroid
241 Germania		84.45[36]	5.05	Main-belt asteroid — C-type
194 Prokne		84.21[36]	5	Main-belt asteroid — C-type
566 Stereoskopia[61]		84.08[36]		Outer main-belt asteroid — Cybele
Amalthea Jupiter V (5)		83.5[62]	2.08[63]	Satellite of Jupiter$
911 Agamemnon		83.3[36]		Asteroid — Jupiter Trojan
22 Kalliope		83.1[64]	8.09M	Main-belt asteroid — M-type — binary
66652 Borasisi		83[22]		Trans-Neptunian object — cubewano — binary
54 Alexandra		82.88		Main-belt asteroid
386 Siegena		82.5[65]		Main-belt asteroid — C-type
59 Elpis		82.4		Main-belt asteroid
1437 Diomedes		82.16[36]	4.6	Asteroid — Jupiter Trojan
444 GyptisM		81.54[36]	12.5	Main-belt asteroid — C-type
Puck Uranus XV [15]		81[3]	2.9A	Satellite of Uranus
409 Aspasia		80.81[36]	4.42	Main-belt asteroid — C-type
20461 Dioretsa		80.2[22]		Centaur[66] — Damocloid
1992 QB1		80[22]		Kuiper belt object — cubewano
(15875) 1996 TP66		80[20]		Kuiper belt object — inner plutino
209 Dido		79.97[36]	4.28	Main-belt asteroid — C-type
334 Chicago		79.275[36]		Main-belt asteroid — C-type
804 Hispania		78.79[36]	9.95	Main-belt asteroid — P-type
185 Eunike		78.76[36]	4.09	Main-belt asteroid
139 Juewa		78.3[36]	4	Main-belt asteroid
354 Eleonora		77.585[36]		Main-belt asteroid — S-type
85 Io		77.4[67]	3.4	Main-belt asteroid
165 Loreley		77.39[36]	3.91	Main-belt asteroid — C-type
173 Ino		77.05[36]	3.83	Main-belt asteroid — C-type
11 Parthenope		76.67[36]	6.15M	Main-belt asteroid
(137295) 1999 RB216		76.5[22]		Kuiper belt object — twotino
14 Irene		76[68]	8.2	Main-belt asteroid
89 Julia		75.75	3.6	Main-belt asteroid — S-type
536 Merapi		75.7[36]		Main-belt asteroid
(145474) 2005 SA278		75.62[22]		Scattered-disc object
776 Berbericia		75.59[36]		Main-belt asteroid
145 Adeona		75.57[36]	3.6	Main-belt asteroid — Adena
150 Nuwa		75.565[36]	3.62	Main-belt asteroid — C-type
Dysnomia Eris I		75[69]		Satellite of Eris
DespinaA Neptune V		75	2.1	Satellite of Neptune
Sycorax Uranus XVII		75[3]	2.3	Satellite of Uranus
49 Pales M		74.9[36]	2.69	Main-belt asteroid — C-type
39 Laetitia		74.75	3.5	Asteroid
117 Lomia		74.36[36]	3.4	Main-belt asteroid — C-type
238 Hypatia		74.245[36]		Main-belt asteroid — C-type
168 Sibylla		74.195[36]	3.42	Main-belt asteroid — C-type
283 EmmaM		74	1.38	Asteroid — binary
51 Nemausa		73.93		Asteroid
106 Dione		73.3		Main-belt asteroid — G-type
(118378) 1999 HT11		73[22]		Trans-Neptunian object
137 Meliboea		72.71[36]	3.2	Main-belt asteroid
20 Massalia$		72.5	5.67	Asteroid
211 Isolda		71.6[36]	3.07	Main-belt asteroid — C-type
1172 Äneas		71.41[70]		Asteroid — Jupiter Trojan
144 Vibilia		71.19[36]	3	Main-belt asteroid
508 Princetonia		71.18[36][71]		Main-belt asteroid
895 Helio		70.95 [36]		Main-belt asteroid — B-type
361 Bononia		70.86 [36]		Main-belt asteroid — D-type
420 Bertholda		70.625 [36]		Main-belt asteroid — P-type
93 Minerva		70.5	2.9	Main-belt asteroid — C-type — trinary
617 Patroclus		70.46 [36]		Asteroid — Jupiter Trojan — binary
308 Polyxo		70.345[36]	2.92	Main-belt asteroid — T-type
18 Melpomene		70.3	3	Main-belt asteroid
268 Adorea		69.945[36]	2.87	Main-belt asteroid
349 Dembowska		69.885[36]		Main-belt asteroid — R-type
489 Comacina		69.695 [36]		Main-belt asteroid
(47171) 1999 TC36(B)		69.5[39]		Kuiper belt object — Trinary (A1+A2+B)
69 Hesperia		69.07	2.76	Main-belt asteroid — M-type
Kuiper belt object — Haumea family
762 Pulcova		68.54 [36]		Main-belt asteroid — C-type — binary
Pabu Borasisi I		68.5[72]		Secondary of 66652 Borasisi
196 Philomela		68.195[36]	2.65	Main-belt asteroid — S-type
212 Medea		68.06[36]	2.64[73]	Main-belt asteroid
95 Arethusa		68.02[36]	2.6	Main-belt asteroid
Portia Uranus XII		67.6[3]	1.7	Satellite of Uranus
588 Achilles		67.735 [36]		Asteroid — Jupiter Trojan
690 Wratislavia		67.325 [36]		Asteroid
111 Ate		67.28		Main-belt asteroid — C-type
247 Eukrate		67.215[36]		Main-belt asteroid — C-type
705 Erminia		67.11[36]		Main-belt asteroid
471 Papagena		67.095 [36]		Main-belt asteroid — C-type
Phorcys Ceto I		67[22]	1.67[57]	Satellite of 65489 Ceto
1998 WW31		66.5	2	Trans-Neptunian object — binary
147 Protogeneia		66.465[36]	2.5	Main-belt asteroid
Menoetius Patroclus I		66.3		Secondary of 617 Patroclus
344 Desiderata		66.135[36]	2.42	Main-belt asteroid — C-type
146 Lucina		66.1[36]	2.4	Main-belt asteroid
141 Lumen		65.52[36]	1.6	Main-belt asteroid — C-type
356 Liguria		65.655 [36]		Main-belt asteroid
187 Lamberta		65.2 [36]	2.37	Main-belt asteroid — C-type
419 Aurelia		64.505 [36]		Main-belt asteroid — F-type
200 Dynamene		64.18[36]		Main-belt asteroid
8 Flora		63.9	8.47	Main-belt asteroid — S-type — Flora
712 Boliviana		63.785 [36]		Main-belt asteroid — X-type
654 Zelinda		63.7 [36]		Main-belt asteroid
426 Hippo		63.55 [36]		Main-belt asteroid
47 Aglaja	pic	63.48		Main-belt asteroid — C-type
279 Thule		63.295[36]		Main-belt asteroid — D-type
92 Undina		63.21[74]	2.1	Main-belt asteroid — M-type
1173 Anchises(1930 UB)		63.135[36]		Asteroid — Jupiter Trojan
1143 Odysseus		62.82[36]		Asteroid — Jupiter Trojan (L4)
469 Argentina		62.785 [36]		Main-belt asteroid — Cybele
159 Aemilia		62.5	1.4	Asteroid
405 Thia		62.45 [36]		Main-belt asteroid — C-type
602 Marianna		62.36 [36]		Main-belt asteroid
46 Hestia		62.07[36]	3.5[75]–21[76]	Main-belt asteroid
216 Kleopatra		62		Main-belt asteroid — M-type — trinary
104 Klymene		61.9	2	Main-belt asteroid
410 Chloris		61.785 [36]		Main-belt asteroid — C-type
134 Sophrosyne		61.64	2	Main-belt asteroid
328 Gudrun		61.46[36]	1.94	Main-belt asteroid — S-type
1867 Deiphobus		61.335[36]		Asteroid — Jupiter Trojan
68 Leto		61.3		Main-belt asteroid — S-type
70 Panopaea		61.01		Main-belt asteroid — C-type
Sawiskera Teharonhiawako I		61		Secondary of 88611 Teharonhiawako
127 Johanna		61[77]		Main-belt asteroid
276 Adelheid		60.8[36]		Main-belt asteroid
176 Iduna		60.52[36]	1.76	Main-belt asteroid — G-type
156 Xanthippe		60.495[36]	1.85	Main-belt asteroid — S-type
28 Bellona		60.45[36]		Main-belt asteroid — C-type
86 Semele		60.3		Main-belt asteroid — C-type
78 Diana		60.3		Main-belt asteroid — C-type
381 Myrrha		60.29 [36]		Main-belt asteroid — C-type —
225 Henrietta		60.245[36]	1.83	Main-belt asteroid — C-type — Cybele
618 Elfriede		60.145 [36]		Main-belt asteroid — C-type —
(73840) 2002 PN34		59.75[20]		Scattered-disc object
105 Artemis		59.6	1.8	Main-belt asteroid — C-type
81 Terpsichore		59.54		Main-belt asteroid — C-type
5 Astraea		59.535[36]	2.9	Main-belt asteroid
74 Galatea		59.36	1.8	Main-belt asteroid — C-type
350 Ornamenta		59.175[36]		Main-belt asteroid — C-type
772 Tanete		58.83[36]		Main-belt asteroid — C-type
476 Hedwig		58.38 [36]		Main-belt asteroid
1093 Freda		58.365 [36]		Main-belt asteroid
171 Ophelia		58.35[36]	1.66	Main-belt asteroid — C-type — Themis
909 Ulla		58.22[36]		Asteroid
3317 Paris		58.13[36]		Asteroid — Jupiter Trojan
203 Pompeja		58.125[36]		Main-belt asteroid
3063 Makhaon		58.07[36]	1.6	Asteroid — Jupiter Trojan
38 Leda		57.97[36]	1.6	Asteroid
360 Carlova		57.88[36]		Main-belt asteroid —
521 Brixia		57.825 [36]		Main-belt asteroid —
490 Veritas		57.775[36]		Main-belt asteroid — Veritas
466 Tisiphone		57.765 [36]		Main-belt asteroid — C-type
53 Kalypso		57.69		Asteroid
2241 Alcathous		57.315 [36]		Asteroid — Jupiter Trojan
388 Charybdis		57.085 [36]		Main-belt asteroid — C-type
34 Circe		56.75	1.5	Main-belt asteroid — C-type
Epimetheus Saturn XI (11)		56.7[3]	0.5304[78]	Satellite of Saturn$
596 Scheila		56.67 [36]		Main-belt asteroid
56 Melete		56.62	1.5	Asteroid
129 Antigone		56.5[79]	2	Main-belt asteroid — nickel-iron
12 Victoria		56.4		Main-belt asteroid — S-type
57 Mnemosyne		56.3		Asteroid
545 Messalina		55.645 [36]		Asteroid
2797 Teucer		55.57[36]		Asteroid — Jupiter Trojan(L4)
2920 Automedon		55.5[36]		Asteroid — Jupiter Trojan(L4)
2001 QR322		55		Neptune trojan
91 Aegina		54.9	1.4	Main-belt asteroid — C-type
140 Siwa		54.895 [36]	1.4	Main-belt asteroid
814 Tauris		54.78[36]		Main-belt asteroid
595 Polyxena		54.535 [36]		Main-belt asteroid
230 Athamantis		54.495		Main-belt asteroid — S-type
659 Nestor		54.435 [36]		Asteroid — Jupiter Trojan
37 Fides		54	1.3	Main-belt asteroid — S-type
514 Armida		53.085 [36]		Main-belt asteroid
23 Thalia		53.8	1.3	Main-belt asteroid — S-type
739 Mandeville		53.765 [36]		Main-belt asteroid — X-type
2007 VL305 A		53.75		Neptune trojan
40 Harmonia		53.6	1.3	Main-belt asteroid — S-type
181 Eucharis		53.33[36]	1.2	Main-belt asteroid — K-type
346 Hermentaria		53.26 [36]		Main-belt asteroid — S-type
357 Ninina		53.05 [36]		Main-belt asteroid
506 Marion		52.97 [36]		Main-belt asteroid — C-type
365 Corduba		52.96 [36]		Main-belt asteroid — C-type
36 Atalante		52.8		Asteroid
713 Luscinia		52.76 [36]		Main-belt asteroid — C-type
1269 Rollandia		52.595[36]		Main-belt asteroid
164 Eva		52.435[36]	1.21	Main-belt asteroid — C-type
98 Ianthe		52.25	1.2	Main-belt asteroid — C-type
240 Vanadis		51.95 [36]		Main-belt asteroid — C-type
221 Eos		51.935[36]	1.17	Main-belt asteroid — K-type
(29981) 1999 TD10		51.85[20]		Trans-Neptunian object
788 Hohensteina		51.84[36]		Main-belt asteroid
791 Ani		51.76[36]		Main-belt asteroid
1208 Troilus		51.67[36]		Asteroid — Jupiter Trojan
192 Nausikaa		51.63[36]		Main-belt asteroid — S-type
63 Ausonia		51.57	1.1	Main-belt asteroid — S-type
35 Leukothea		51.555[36]	1.1	Main-belt asteroid — C-type
570 Kythera		51.405 [36]		Main belt asteroid
233 Asterope		51.39 [36]	1.4	Main belt asteroid — T-type
4063 Euforbo		51.23[36]		Asteroid — Jupiter Trojan
1583 Antilochus		50.81[36]		Asteroid — Jupiter Trojan
1390 Abastumani		50.79[36]		Main-belt asteroid
522 Helga		50.61 [36]		Main-belt asteroid — Cybele
175 Andromache		50.585[36]	1.08	Main-belt asteroid — C-type
191 Kolga		50.515[36]	1.08	Main-belt asteroid — C-type
663 Gerlinde		50.44 [36]		Asteroid
626 Notburga		50.365 [36]		Asteroid
387 Aquitania		50.255[36]		Main-belt asteroid — S-type
42 Isis		50.1		Main-belt asteroid — S-type
30 Urania		50		Main-belt asteroid — S-type

Examples of objects between 50 km and 20 km in radius

There are easily tens of thousands of objects 50 km in radius or smaller^{[clarification needed]}, but only a fraction have been explored. 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. (see also List of minor planets)

Body	Image	Mean radius (km)	Mass ×1015 kg (Eg)	Type of object
50 VirginiaA		49.91	1000	Asteroid
114 Kassandra		49.86[36]	1000	Main-belt asteroid — T-type
1021 Flammario		49.695[36]		Asteroid
162 Laurentia		49.55[36]		Main-belt asteroid
401 Ottilia		49.56[36]		Main-belt asteroid
ThebeA Jupiter XIV (14)		49.3[3]	430	Satellite of Jupiter
148 Gallia		48.88[36]	980	Main-belt asteroid — R-type
404 Arsinoe		48.855[36]		Main-belt asteroid — C-type
27 EuterpeA		48	930	Main-belt asteroid — S-type
773 Irmintraud		47.94[36]		Asteroid — D-type
21 Lutetia		47.8[36]	1700 [80]	Main-belt asteroid — M-type
62 Erato		47.7	910	Main-belt asteroid — Themis
26 Proserpina		47.4[36]	900	Asteroid
345 Tercidina		47.06[36]		Main-belt asteroid — C-type
JulietA Uranus XI		46.8[3]	560	Satellite of Uranus
58 Concordia		46.72	850	Asteroid
229 Adelinda		46.6[36]		Main-belt asteroid — C-type
379 Huenna		46.2	480	Main-belt asteroid — C-type
Nix Pluto II		46[81]	70	Satellite of Pluto
103 Hera		45.6	790	Asteroid
17 Thetis		45	1200	Asteroid
143 Adria		44.965[36]	760	Main-belt asteroid
109 Felicitas		44.7	750	Asteroid
100 Hekate		44.5[82]	1000	Asteroid
90 Antiope A		43.9[83]	410	Asteroid — C-type — binary
227 Philosophia		43.655[36]		Main-belt asteroid
Prometheus $ Saturn XVI (16)		43.1[84]	156.6	Satellite of Saturn
110 Lydia		43.05	670	Asteroid
ElaraA Jupiter VII		43	870	Satellite of Jupiter — Himalia group
72 Feronia		42.95	670	Asteroid
60558 Echeclus/ 174P/Echeclus		42[20][22]		Centaur[85]
S/2000 (90) 1		41.9[83]		Asteroid moon of 90 Antiope
71 Niobe		41.7	610	Asteroid
102 Miriam		41.5[86]		Asteroid
97 Klotho		41.4	590	Asteroid
61 Danae		41.02		Asteroid
ThalassaA Neptune IV		41	350	Satellite of Neptune
122 Gerda		40.85[36]	570	Main-belt asteroid — S-type
Pandora$ Saturn XVII (17)		40.7[84]	135.6	Satellite of Saturn
83 Beatrix		40.69	560	Main-belt asteroid — X-type
32 PomonaA		40.5	550	Asteroid
BelindaA Uranus XIV (14)		40	360	Satellite of Uranus
115 Thyra		39.92[36]		Asteroid
Cressida Uranus IX		39.8[3]	340A	Satellite of Uranus
135 Hertha		39.62[36]		Asteroid
84 Klio		39.58[87]	520	Asteroid
80 Sappho		39.2		Asteroid
Echidna Typhon I		39		Satellite of 42355 Typhon
1001 Gaussia		39		Asteroid
58534 Logos		38.5[88]	270	Kuiper belt object — cubewano — binary
124 Alkeste		38.18[36]	470	Main-belt asteroid — S-type
55576 Amycus		38.15[20]		Centaur
25 Phocaea		37.6		Asteroid
Weywot Quaoar I		37		Satellite of Quaoar
8405 Asbolus		37[89]–42[20]		Centaur
112 Iphigenia		36.35[36]		Asteroid
(86047) 1999 OY3		36		Kuiper belt object — Haumea family
Hydra Pluto III		36[3]	391P	Satellite of Pluto
Rosalind* Uranus XIII		36	250	Satellite of Uranus
Caliban Uranus XVI		36[3]		Satellite of Uranus
99 Dike		35.95	390	Asteroid
66 Maja		35.91		Asteroid
116 Sirona		35.85[36]		Main-belt asteroid
44 Nysa		35.32	370	Main-belt asteroid — E-type
10370 Hylonome		35[20]		Centaur
77 Frigga		34.63	350	Asteroid
55 Pandora		33.35		Asteroid
133 Cyrene		33.29[36]	310	Main-belt asteroid — S-type
79 Eurynome		33.24		Asteroid
Zoe Logos I		33		Satellite of 58534 Logos
Naiad Neptune III		33	190A	Satellite of Neptune
43 Ariadne		32.94[36]		Asteroid
101 Helena		32.9	300	Asteroid
108 Hecuba		32.49[90]	390	Asteroid
DesdemonaA Uranus X		32	180	Satellite of Uranus
Halimede* Neptune IX		31		Satellite of Neptune
52975 Cyllarus		31[20]		Centaur
82 Alkmene		30.48		Asteroid
60 Echo		30.1		Asteroid
Comet Hale–Bopp C/1995 O1		30[91]		Comet
Pasiphaë*A Jupiter VIII		30	300	Satellite of Jupiter
7066 Nessus		30[20][22]		Centaur
Neso Neptune XIII		30[3]		Satellite of Neptune
64 Angelina		30[92]		Main-belt asteroid — E-type
2008 KV42		29.5[93]		Detached object
67 Asia		29.06		Asteroid
119 Althaea		28.65[36]	200	Main-belt asteroid — S-type
75 Eurydike		27.955[36]	180	Main-belt asteroid — M-type
142 Polana		27.645[36]	180	Main-belt asteroid — F-type
253 Mathilde$		26.4	103.3	Main-belt asteroid — C-type
52872 Okyrhoe		26.01[20]		Centaur
Bianca Uranus VIII		25.7[3]	92	Satellite of Uranus
Prospero Uranus XVIII		25	85	Satellite of Uranus
Setebos Uranus XIX		24[3]	75	Satellite of Uranus
123 Brunhild		23.985[36]		Main-belt asteroid
4348 Poulydamas		23.95[94]		Asteroid — Jupiter Trojan
1000 Piazzia		23.89[36]		Main-belt asteroid
113 Amalthea		23.07[36]	100	Main-belt asteroid
Carme* Jupiter IX		23	130	Satellite of Jupiter — Carme group
138 Tolosa		22.75[36]	99	Main-belt asteroid — S-type
126 Velleda		22.4[36]	94	Main-belt asteroid
73 Klytia		22.22	92	Asteroid
Sao Neptune XI		22		Satellite of Neptune
125 Liberatrix		21.79[36]	87	Main-belt asteroid — M-type
Metis Jupiter XVI (16)		21.5[95]	36	Satellite of Jupiter
132 Aethra		21.435[36]	82	Main-belt asteroid — M-type
Ophelia* Uranus VII		21.4[3][4]	53	Satellite of Uranus
Laomedeia Neptune XII		21		Satellite of Neptune
118 Peitho		20.87[36]	76	Main-belt asteroid
208 Lacrimosa		20.665[36]	73.9	Main-belt asteroid — Koronis — S-type
136 Austria		20.5[36]	68	Main-belt asteroid — M-type
131 Vala		20.22[36]	69	Main-belt asteroid
Cordelia* Uranus VI		20.1[3]	44	Satellite of Uranus
Siarnaq Saturn XXIX		20[84]		Satellite of Saturn

Examples of objects between 20 km and 1 km in radius

Satellites of Jupiter

Satellites of Saturn

Satellites of Uranus

Satellites of Neptune

Body	Image	Mean radius (km)	Mass ×1015 kg (Eg)	Type of object
167 Urda		19.97[36]	66.7	Main-belt asteroid — Koronis — S-type
Hidalgo 944		19		Centaur (minor planet)
Sinope* Jupiter IX		19	76	Satellite of Jupiter
Psamathe* Neptune X		19	37	Satellite of Neptune
29P/Schwassmann– Wachmann		18.65[20]		Comet — centaur
Lysithea* Jupiter X		18	63	Satellite of Jupiter — Himalia group
158 Koronis		17.685[36]	46.3	Main-belt asteroid — Koronis — S-type
Helene Saturn XII (12) Dione B		17.6[3]	25	Satellite of Saturn — Dione trojan
226 Weringia		16.92[36]		Main-belt asteroid — S-type
433 Eros$		16.84	66.9	Near-Earth asteroid — Amor
Stephano Uranus XX		16[3]	22	Satellite of Uranus
Albiorix Saturn XXVI (16)		16		Satellite of Saturn
1036 Ganymed		15.9	33	Near-Earth asteroid
1815 Beethoven		15.8[22]		Main-belt asteroid
243 Ida		15.7[96]	42	Main-belt asteroid — Koronis — S-type — binary
Atlas$ Saturn XV (15)		15.3	66	Satellite of Saturn
31824 Elatus		15[20]		Centaur
Perdita Uranus XXV (15)		15[97]	13	Satellite of Uranus
Pan$ Saturn XVIII (18)		14.2[98]	4.95[98]	Satellite of Saturn
Linus Kalliope I		14[64]	60[99]	Asteroid moon of 22 Kalliope
Ananke Jupiter XII (12)		14[59]	38.2	Satellite of Jupiter
Telesto Saturn XIII or Tethys B		11.8[100]		Satellite of Saturn — Tethys trojan
Phobos$ Mars I		11.1	10.7	Satellite of Mars
Paaliaq Saturn XX - 20		11	8.2	Satellite of Saturn
Francisco Uranus XXII - 22		11[3]	7.2	Satellite of Uranus
Calypso Saturn XIV or Tethys C		10.7[3]		Satellite of Saturn — Tethys trojan
Leda Jupiter XIII (13)		10[3]	11	Satellite of Jupiter — Himalia group
Ferdinand Uranus XXIV - 24		10[3]	5.4	Satellite of Uranus
Margaret Uranus XXIII - 23		10[3]	5.4	Satellite of Uranus
149 Medusa		9.88[36]	8	Main-belt asteroid
Romulus Sylvia I		9	4	Asteroid moon of 87 Sylvia
Ymir Saturn XIX (19)		9[3]		Satellite of Saturn
Trinculo Uranus XXI - 21		9	3.9	Satellite of Uranus
Cupid Uranus XXVII - 27		9	3.8	Satellite of Uranus
2002 Euler		8.72	5.5	Asteroid
Adrastea Jupiter XV (15)		8.2[3]	2	Satellite of Jupiter
Kiviuq Saturn XXIV - 24		8[3]		Satellite of Saturn
2000 Herschel		8[101]		Main-belt asteroid[102]
Tarvos Saturn XXI (21)		7.5[3]		Satellite of Saturn
S/2006 (624) 1 Hektor I		7.5		Asteroid moon of 624 Hektor
2685 Masursky		7–10	5–11	Asteroid
(65407) 2002 RP120		7.3[103]	3.1	Damocloid (retrograde) & possible ejected SDO
Bestla Saturn XXXIX - 34		7		Satellite of Saturn
S/2011 P 1 Pluto IV		6.5–17		Satellite of Pluto
Petit-Prince Eugenia I		6.5	1.2	Asteroid moon of 45 Eugenia
Deimos$ Mars II		6.2	1.48	Satellite of Mars
951 Gaspra		6.1[104]	2–3	Asteroid
Ijiraq Saturn XXII - 22		6		Satellite of Saturn
S/2002 (121) 1 Hermione I		6[105]	1.6	Asteroid moon of 121 Hermione
1P/Halley		5.5[106]	0.03[107]	Comet (75.3 year period)
S/2001 (107) 1 Camilla I		5.5[105]	1.5	Asteroid moon of 107 Camilla
Mab Uranus XXVI (26)		5.0[108]		Satellite of Uranus
Erriapus Saturn XXVIII - 18		5.0		Satellite of Saturn
26858 Misterrogers		4.75		Asteroid
Callirrhoe Jupiter XVII - 17		4.3		Satellite of Jupiter
Themisto Jupiter XVIII - 38		4.0	0.69	Satellite of Jupiter
Daphnis Saturn XXXV (35)		3.9 [109]	0.084[98]	Satellite of Saturn
Remus Sylvia II		3.5	0.2	Asteroid moon of 87 Sylvia
S/2003 (379) 1 Huenna I		3.5		Asteroid moon of 379 Huenna
Tarqeq Saturn LII - 52		3.5		Satellite of Saturn
Kari Saturn XLV - 45		3.5		Satellite of Saturn
Mundilfari Saturn XXV - 25		3.5		Satellite of Saturn
Suttungr Saturn XXIII - 23		3.5		Satellite of Saturn
Praxidike Jupiter XXVII - 27		3.4		Satellite of Jupiter
Narvi Saturn XXXI - 31		3.3		Satellite of Saturn
Skathi Saturn XXVII - 27		3.2		Satellite of Saturn
9P/Tempel		3[110][111]	0.075	Comet
Hyrrokkin Saturn XLIV - 44		3.0[3]		Satellite of Saturn
Greip Saturn LI - 51		3		Satellite of Saturn
Jarnsaxa Saturn L - 50		3		Satellite of Saturn
Skoll Saturn XLVII - 47		3		Satellite of Saturn
Surtur Saturn XLVIII - 48		3		Satellite of Saturn
S/2003 (130) 1 Elektra I		3	0.4	Asteroid moon of 130 Elektra
Loge Saturn XLVI - 46		3		Satellite of Saturn
Hati Saturn XLIII - 43		3		Satellite of Saturn
Fornjot Saturn XLII - 42		3		Satellite of Saturn
Bebhionn Saturn XXXVII - 37		3		Satellite of Saturn
Aegir Saturn XXXVI - 36		3		Satellite of Saturn
S/2004 (45) 1 Eugenia II		3		Asteroid moon of 45 Eugenia
S/2007 S 2		3		Satellite of Saturn
118401 LINEAR		3	0.23	Main-belt comet
Bergelmir Saturn XXXVIII (38)		3[3]		Satellite of Saturn
Thrymr Saturn XXX (30)		2.8[112]		Satellite of Saturn
4179 Toutatis		2.7[113]	0.05	Near-Earth asteroid
Megaclite Jupiter XIX (19)		2.7[3] –2.25[114]		Satellite of Jupiter
2867 Šteins		2.65[115]		Asteroid — E-type
Iocaste Jupiter XXIV - 24		2.6		Satellite of Jupiter
Kalyke Jupiter XXIII - 23		2.6		Satellite of Jupiter — Carme group
3200 Phaethon		2.55	14	Asteroid — Apollo — B-type
Farbauti Saturn XL - 40		2.5		Satellite of Saturn
3753 Cruithne		2.5	.13	Asteroid & quasi-satellite of Earth
5535 Annefrank		2.4		Asteroid
19P/Borrelly		2.4[116]		Comet (6.85 year period) (Jupiter family)
2P/Encke		2.4[117]		Comet (3.3 year period)
Taygete Jupiter XX - 20		2.2		Satellite of Jupiter — Carme group
Harpalyke Jupiter XXII - 22		2.2		Satellite of Jupiter
C/1996 B2 Comet Hyakutake		2.1[118]		Comet[119]
81P/Wild Wild 2		2[120]		Comet
Fenrir Saturn XLI - 41		2		Satellite of Saturn
Pallene Saturn XXXIII (33)		2	0.043	Satellite of Saturn
Eukelade Jupiter XLVII - 47		2		Satellite of Jupiter
Helike Jupiter XLV - 65		2		Satellite of Jupiter
Aoede Jupiter XLI - 41		2		Satellite of Jupiter
Hermippe Jupiter XXX - 30		2		Satellite of Jupiter
Thyone Jupiter XXIX - 29		2		Satellite of Jupiter
Autonoe Jupiter XXVIII - 28		2		Satellite of Jupiter
Isonoe Jupiter XXVI - 26		1.9		Satellite of Jupiter — Carme group
Chaldene Jupiter XXI - 21		1.9		Satellite of Jupiter — Carme group
(53319) 1999 JM8		1.75		Asteroid
Polydeuces Saturn XXXIV (34) Dione C		1.75[121]	0.03	Satellite of Saturn — Dione trojan
17P/Holmes		1.7[122]		Comet
Erinome Jupiter XXV - 25		1.6		Satellite of Jupiter — Carme group
Methone Saturn XXXII (32)		1.6[3]	0.019	Satellite of Saturn
Arche Jupiter XLIII - 63		1.5		Satellite of Jupiter
Hegemone Jupiter XXXIX - 34		1.5		Satellite of Jupiter
Euanthe Jupiter XXXIII - 33		1.5		Satellite of Jupiter
Eurydome Jupiter XXXII - 32		1.5		Satellite of Jupiter
Carpo Jupiter XLVI - 66		1.5	0.45	Satellite of Jupiter
Aitne Jupiter XXXI - 31		1.5		Satellite of Jupiter
4055 Magellan		1.245[123]		Asteroid — Amor — V-type
9969 Braille		1.28		Asteroid
132524 APL		1.15		Asteroid
(6178) 1986 DA		1.15[124]	0.002	Asteroid — Amor — M-type
Anthe Saturn XLIX - 49		1		Satellite of Saturn
Kore Jupiter XLIX (49)		1		Satellite of Jupiter
Cyllene Jupiter XLVIII (48)		1		Satellite of Jupiter
Kallichore Jupiter XLIV (44)[125]		1		Satellite of Jupiter
Mneme Jupiter XL (40)		1		Satellite of Jupiter
Pasithee Jupiter XXXVIII (38)		1		Satellite of Jupiter
Kale Jupiter XXXVII (37)		1	.015	Satellite of Jupiter
Sponde Jupiter XXXVI (36)		1		Satellite of Jupiter
Orthosie Jupiter XXXV (35)		1		Satellite of Jupiter
Herse Jupiter L (50)		1		Satellite of Jupiter
Thelxinoe Jupiter XLII (42)[125]		1		Satellite of Jupiter
Euporie Jupiter XXXIV (34)		1[3]	0.015	Satellite of Jupiter

Examples of objects below 1 km (1000 m) in radius

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,^[126] 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 viewed by large telescopes. 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).

Body	Image	Mean radius meters	Mass ×1012 kg	Type of object
1620 Geographos		885[36]	4	Near-Earth asteroid — Apollo
1862 Apollo		850	5.1	Near-Earth asteroid — Apollo — Q-type
100000 Astronautica		≈800[127]		Inner Main-belt Asteroid[128]
Dactyl Ida I		700		Asteroid moon of 243 Ida
1566 Icarus		700	2.9	Near-Earth asteroid — Apollo — U-type
4769 Castalia		700[129]	1.3[130]	Near-Earth asteroid — Apollo
(137108) 1999 AN10		650		Near-Earth asteroid — Apollo
(29075) 1950 DA		600	3[131]	Near-Earth asteroid — Apollo
(66391) 1999 KW4		600	2.33	Mercury-crosser asteroid — Aten
46P/Wirtanen		600		Comet
103P/Hartley Hartley 2		570 [132]	0.3[132]	Comet (6.46-year period)
3908 Nyx		520	5	Near-Earth asteroid — Amor — V-type
S/2003 J 9		500[3]		Satellite of Jupiter — Carme group
S/2003 J 12		500[3]		Satellite of Jupiter
14827 Hypnos		450[133]		Comet (dormant)[134]
2007 CA19		432	1.2	Near-Earth asteroid — Apollo
2062 Aten		450	0.76[135]	Near-Earth asteroid — Aten
6489 Golevka		350[136]		Near-Earth asteroid — Apollo
25143 Itokawa		346	0.0358	Near-Earth asteroid — Apollo
2004 XP14		300		Near-Earth asteroid — Apollo
(144898) 2004 VD17		290	3[137]	Near-Earth asteroid — Apollo
Aegaeon Saturn LIII		250		Satellite of Saturn
2005 YU55		200[138]		Near-Earth asteroid — Apollo — PHO
4660 Nereus		165[139]		Near-Earth asteroid — Apollo
S/2009 S 1 Saturn LXII (62)		150		Satellite of Saturn
2010 TK7		150		Earth trojan — Apollo
99942 Apophis		135	0.05[137]	Near-Earth asteroid — Aten — PHO
2007 TU24		125[140]		Near-Earth asteroid — Apollo — PHO
2002 JE9		100		NEA — Apollo — PHO
2010 XC15		100		NEA — Apollo — PHO
1994 WR12		65[141]	0.002[137]	Near-Earth asteroid — Aten
2008 HJ	[	18 [142]	0.000005 [142]	Near-Earth asteroid & fast rotator (42 s)[142]
1998 KY26		15[143]		Near-Earth asteroid & fast rotator (10 m)

Currently most of the objects of mass between 10⁹ kg to 10¹² kg (less than 1000 teragrams (Tg)) listed here are near-Earth asteroids. (See also: list of NEAs by distance from Sun.) Note that 1994 WR₁₂ possesses less mass than the Great Pyramid of Giza, 5.9 × 10⁹ kg.

For more about really small objects in the Solar System see meteoroid, micrometeoroid, and interplanetary dust cloud.

Surface gravity

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:

$a_g = G \frac{m}{r^2}$

where

a_g 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

$a_c = 4\pi^2\frac{r}{T^2}$

where

T is the rotation period of the celestial body

The surface gravity at the equator is then given by

$g = a_g - a_c = \frac{G m}{r^2} - \frac{4\pi^2r}{T^2}$

Closely imaged objects

Selected Closely Imaged Objects
Sun	Jupiter	Saturn	Uranus	Neptune	Earth	Venus
Mars	Ganymede	Titan	Mercury	Callisto	Io	Moon
Europa	Triton	Titania	Rhea	Oberon	Iapetus	Umbriel
Ariel	Dione	Tethys	Vesta	Enceladus	Miranda	Proteus
Mimas	Hyperion	Phoebe	Janus	Amalthea	Epimetheus	Prometheus
Pandora	Mathilde	Helene

Notes

^† 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 where the 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.

^A Assumed mass

^P Mass calculated assuming Pluto's density of 2.0 g/cm³

Note: For many of the well-determined moons, radii were taken from the JPL Solar System Dynamics page.

^O Radius has been determined with Asteroid occultation

References

1. ^ Mike Brown. "The Dwarf Planets". CalTech. Archived from the original on 2011-02-12. http://www.gps.caltech.edu/~mbrown/dwarfplanets/. Retrieved 2008-09-25. 
2. ^ D. T. Britt; G. J. Consol-magno SJ; W. J. Merline (2006). "Small Body Density and Porosity: New Data, New Insights". Lunar and Planetary Science XXXVII. http://www.lpi.usra.edu/meetings/lpsc2006/pdf/2214.pdf. 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 ag ah ai aj ak} "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 2008-10-24. http://ssd.jpl.nasa.gov/?sat_phys_par. Retrieved 2008-12-16. 
4. ^ ^{a b} Williams, Dr. David R. (2007-11-23). "Uranian Satellite Fact Sheet". NASA (National Space Science Data Center). Archived from the original on 2010-01-18. http://nssdc.gsfc.nasa.gov/planetary/factsheet/uraniansatfact.html. Retrieved 2008-12-12. 
5. ^ ^{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} Mike Brown, How many dwarf planets are there in the outer solar system?[1]
6. ^ Densities of those KBOs whose masses are uncertain are assumed to be 2.0 in line with Pluto
7. ^ Jacobson, R. A.; Antreasian, P. G.; Bordi, J. J.; Criddle, K. E.; et al. (December 2006). "The gravity field of the saturnian system from satellite observations and spacecraft tracking data". The Astronomical Journal 132 (6): 2520–2526. Bibcode 2006AJ....132.2520J. doi:10.1086/508812. 
8. ^ "Size, density, albedo and atmosphere limit of dwarf planet Eris from a stellar occultation". European Planetary Science Congress Abstracts 6. 2011. http://meetingorganizer.copernicus.org/EPSC-DPS2011/EPSC-DPS2011-137-8.pdf. Retrieved 2011-09-14. 
9. ^ M.E. Brown and E.L. Schaller (2007). "The Mass of Dwarf Planet Eris". Science 316 (5831): 1585. Bibcode 2007Sci...316.1585B. doi:10.1126/science.1139415. PMID 17569855. Archived from the original on 2011-02-12. http://www.sciencemag.org/cgi/content/abstract/316/5831/1585. 
10. ^ Young, Eliot F.; Young, L. A.; Buie, M. (2007). "Pluto's Radius". American Astronomical Society, DPS meeting #39, #62.05; Bulletin of the American Astronomical Society 39: 541. Bibcode 2007DPS....39.6205Y. 
11. ^ Space Daily - SATURN DAILY DLR Researchers Compile Atlas Of Saturn's Moon Rhea, An Icy Alien World (2010)
12. ^ Thomas, P. C.; Burns, J. A.; Helfenstein, P.; Squyres, S.; Veverka, J.; Porco, C.; Turtle, E.; McEwen, A.; Denk, T.; Giese, B.; et al. (2007). "Shapes of the Cronian icy satellites and their significance". Icarus 190 (2): 573–584. Bibcode 2007Icar..190..573T. doi:10.1016/j.icarus.2007.03.012. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WGF-4NDMNGC-4&_user=10&_coverDate=10%2F31%2F2007&_rdoc=21&_fmt=summary&_orig=browse&_srch=doc-info(%23toc%236821%232007%23998099997%23668725%23FLA%23display%23Volume)&_cdi=6821&_sort=d&_docanchor=&_ct=29&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8101cb113c75c3b948580ff1b4750474. ^{[dead link]}
13. ^ ^{a b} T.L. Lim, J. Stansberry, T.G. Müller (2010). ""TNOs are Cool": A survey of the trans-Neptunian region III. Thermophysical properties of 90482 Orcus and 136472 Makemake". Astronomy and Astrophysics 518: L148. Bibcode 2010A&A...518L.148L. doi:10.1051/0004-6361/201014701. 
14. ^ B. Sicardy et al. (2006). "Charon’s size and an upper limit on its atmosphere from a stellar occultation". Nature 439 (7072): 52. Bibcode 2006Natur.439...52S. doi:10.1038/nature04351. PMID 16397493. 
15. ^ Michael E. Brown. "The largest Kuiper belt objects". In M. Antonietta Barucci, Hermann Boehnhardt, Dale P. Cruikshank (pdf). The Solar System Beyond Neptune. University of Arizona Press. pp. 335–345. ISBN 0-8165-2755-5. http://www.gps.caltech.edu/~mbrown/papers/ps/kbochap.pdf. 
16. ^ Michael E. Brown; Burgasser, A.J.; Fraser W.C. (2011). "The Surface Composition of Large Kuiper Belt Object 2007 OR10". Mike Brown's Website. arXiv:1108.1418. http://www.gps.caltech.edu/~mbrown/papers/ps/or10.pdf. Retrieved 2011-08-08. 
17. ^ J. Stansberry, W. Grundy, M. Brown, et al. (2008). "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope". The Solar System beyond Neptune (University of Arizona Press). arXiv:astro-ph/0702538. Bibcode 2008ssbn.book..161S. 
18. ^ ^{a b} Pedro Lacerda and David C. Jewitt - Densities of Solar System Objects from their Rotational Lightcurves (2006)- Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822
19. ^ ^{a b c} Brown, Michael E.; Fraser, Wesley C. (2010). "Quaoar: A Rock in the Kuiper belt". The Astrophysical Journal 714 (2): 1547. arXiv:1003.5911. Bibcode 2010ApJ...714.1547F. doi:10.1088/0004-637X/714/2/1547. 
20. ^ ^{a b c d e f g h i j k l m n o p q r s} John Stansberry, Will Grundy, Mike Brown, Dale Cruikshank, John Spencer, David Trilling, Jean-Luc Margot (2007). "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope". University of Arizona, Lowell Observatory, California Institute of Technology, NASA Ames Research Center, Southwest Research Institute, Cornell University. arXiv:astro-ph/0702538. Bibcode 2008ssbn.book..161S. 
21. ^ ^{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} Wm. Robert Johnston (7 August 2010). "List of Known Trans-Neptunian Objects". Johnston's Archive. http://www.johnstonsarchive.net/astro/tnoslist.html. Retrieved 2011-03-03. 
22. ^ ^{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} Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. http://www.johnstonsarchive.net/astro/tnoslist.html. Retrieved 2008-12-08. 
23. ^ Marc W. Buie (2010-06-16 using 19 of 19 observations over 0.98 years (356 days)). "Orbit Fit and Astrometric record for 10KZ39". SwRI (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/10KZ39.html. Retrieved 2011-08-18. 
24. ^ "2010 KZ39". IAU Minor Planet Center. http://www.minorplanetcenter.net/db_search/show_object?object_id=2010+KZ39&commit=Show. Retrieved 2011-08-18. 
25. ^ Densities of those KBOs whose masses are uncertain are assumed to be 2.0 in line with Pluto
26. ^ ^{a b} Wm. Robert Johnston (7 August 2010). "List of Known Trans-Neptunian Objects". Johnston's Archive. http://www.johnstonsarchive.net/astro/tnoslist.html. Retrieved 2011-04-09. 
27. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
28. ^ Schmidt, B. E., et al. (2008). "Hubble takes a look at Pallas: Shape, size, and surface" (PDF). 39th Lunar and Planetary Science Conference (Lunar and Planetary Science XXXIX). Held March 10–14, 2008, in League City, Texas. 1391: 2502. http://www.lpi.usra.edu/meetings/lpsc2008/pdf/2502.pdf. Retrieved 2008-08-24. 
29. ^ Baer, James; Chesley, Steven R. (2008). "Astrometric masses of 21 asteroids, and an integrated asteroid ephemeris" (PDF). Celestial Mechanics and Dynamical Astronomy (Springer Science+Business Media B.V. 2007) 100 (2008): 27–42. Bibcode 2008CeMDA.100...27B. doi:10.1007/s10569-007-9103-8. http://www.springerlink.com/content/h747307j43863228/fulltext.pdf. Retrieved 2008-11-11. 
30. ^ "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 2006-07-13. Archived from the original on 2010-01-18. http://ssd.jpl.nasa.gov/?sat_phys_par. Retrieved 2008-02-09. 
31. ^ Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. http://home.earthlink.net/~jimbaer1/astmass.txt. Retrieved 2008-12-03. 
32. ^ Wm. Robert Johnston (26 November 2008). "(119979) 2002 WC19". Johnston's Archive. http://www.johnstonsarchive.net/astro/astmoons/am-119979.html. Retrieved 2009-03-04. 
33. ^ "JPL definition of Main-belt Asteroid (MBA)". JPL Solar System Dynamics. http://ssd.jpl.nasa.gov/sbdb_help.cgi?class=MBA. Retrieved 2009-03-12. 
34. ^ ^{a b} "List of known trans-Neptunian objects". Johnstonsarchive.net. 2010-08-07. Archived from the original on 2007-06-20. http://www.johnstonsarchive.net/astro/tnoslist.html. Retrieved 2011-01-04. 
35. ^ Muller, T.G.; Lellouch, E.; Stansberry, J. et al. (2010). ""TNOs are Cool": A survey of the trans-Neptunian region I. Results from the Herschel science demonstration phase (SDP)". Astronomy and Astrophysics 518: L146. Bibcode 2010A&A...518L.146M. doi:10.1051/0004-6361/201014683. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/abs/2010A%26A...518L.146M. 
36. ^ ^{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 ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb ec ed ee ef eg eh ei ej ek el em en eo ep eq er es et eu ev ew ex ey ez fa fb fc fd fe ff fg fh fi fj fk fl fm fn fo fp fq fr fs ft fu fv} Asteroid Data Archive, Archive Planetary Science Institute
37. ^ ^{a b c d e f g} M. Kaasalainen (2002). "Models of Twenty Asteroids from Photometric Data" (PDF). Icarus 159 (2): 369. Bibcode 2002Icar..159..369K. doi:10.1006/icar.2002.6907. http://www.rni.helsinki.fi/~mjk/IcarPIII.pdf. Retrieved 2009-06-23. 
38. ^ Clara Moskowitz (2010-06-16). "Scientists size up a bright mini-world". MSNBC. http://www.msnbc.msn.com/id/37735465/ns/technology_and_science-space/. Retrieved 2010-06-16. 
39. ^ ^{a b c} Benecchi, S.D; Noll, K. S.; Grundy, W. M.; Levison, H. F. (2010). "(47171) 1999 TC36, A Transneptunian Triple". Icarus 207 (2): 978–991. arXiv:0912.2074. Bibcode 2010Icar..207..978B. doi:10.1016/j.icarus.2009.12.017. 
40. ^ Müller, T. G; Blommaert, J. A. D. L. (2004). "65 Cybele in the thermal infrared: Multiple observations and thermophysical analysis". Astronomy and Astrophysics 418 (1): 347–356. arXiv:astro-ph/0401458. Bibcode 2004A&A...418..347M. doi:10.1051/0004-6361:20040025. 
41. ^ "JPL Small-Body Database Browser: 65 Cybele". 2008-08-10 last obs. Archived from the original on 2010-01-17. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=65. Retrieved 2008-11-25. 
42. ^ ^{a b} J. Torppa et al. (2003). "Shapes and rotational properties of thirty asteroids from photometric data" (PDF). Icarus 164 (2): 346. Bibcode 2003Icar..164..346T. doi:10.1016/S0019-1035(03)00146-5. http://www.rni.helsinki.fi/~mjk/thirty.pdf. 
43. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=15%20Eunomia;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
44. ^ ^{a b} "List of Known Trans-Neptunian Objects". Johnston's Archive. Archived from the original on 2007-06-20. http://www.johnstonsarchive.net/astro/tnoslist.html. Retrieved 2006-12-14. 
45. ^ "JPL Small-Body Database Browser: 88 Thisbe". 2008-07-04 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=88. Retrieved 2008-11-06. 
46. ^ "2002 KW14". Sphinx.planetwaves.net. Archived from the original on 2011-02-12. http://sphinx.planetwaves.net/2002kw14.htm. Retrieved 2011-01-04. 
47. ^ Storrs, Alex; Weiss, B.; Zellner, B.; et al. (1998). "Imaging Observations of Asteroids with Hubble Space Telescope". Icarus 137 (2): 260–268. Bibcode 1999Icar..137..260S. doi:10.1006/icar.1999.6047. http://web.media.mit.edu/~win/hstpub.pdf. Retrieved 2005-01-15. ^{[dead link]}
48. ^ "JPL Small-Body Database Browser: 48 Doris". 2008-06-13 last obs. Archived from the original on 2010-01-17. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=48. Retrieved 2008-11-10. 
49. ^ Millis, R.L; Wasserman, Bowell, Franz, Klemola, Dunham (1984). "The diameter of 375 URSULA from its occultation of AG + 39 deg 303". Astronomical Journal 89: 592–596. Bibcode 1984AJ.....89..592M. doi:10.1086/113553. 
50. ^ Durech., J.; Kaasalainen, M., Marciniak, A.; et al., “Physical models of ten asteroids from an observers' collaboration network”, Astronomy and Astrophysics, Volume 465, Issue 1, April I 2007, pp. 331-337
51. ^ Stansberry, Grundy, Brown, Spencer, Trilling, Cruikshank, Luc Margot Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope (2007) Preprint arXiv
52. ^ [Planetary occultations: 2001 results|http://occsec.wellington.net.nz/planet/2001/plnres01.htm#Aurora]
53. ^ Fernandes, Yanga R.; Sheppard, Scott S.; Jewitt, David C. (2003). "The albedo distribution of Jovian Trojan asteroids". The Astronomical Journal 126 (3): 1563–1574. Bibcode 2003AJ....126.1563F. doi:10.1086/377015. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/abs/2003AJ....126.1563F. 
54. ^ "JPL Small-Body Database Browser: 7 Iris". 2009-03-17 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=7. Retrieved 2009-03-17. 
55. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=372%20Palma%20;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
56. ^ Davies, J. K.; Tholen, D. J.; Ballantyne, D. R. (1996). "Infrared Observations of Distant Asteroids". Completing the Inventory of the Solar System, Astronomical Society of the Pacific Conference Proceedings 107: 97–105. Bibcode 1996ciss.conf...97D. 
57. ^ ^{a b c} Grundy, W.M.; Stansberry, J.A.; Noll K.S.; Stephens, D.C.; et al. (2007). "The orbit, mass, size, albedo, and density of (65489) Ceto/Phorcys: A tidally-evolved binary Centaur". Icarus 191 (1): 286. arXiv:0704.1523. Bibcode 2007Icar..191..286G. doi:10.1016/j.icarus.2007.04.004. 
58. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=790%20Pretoria;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
59. ^ ^{a b} (Note, he assumed geometric albedo of 0.04-->) Sheppard, S. S., Jewitt, D. C., Porco, C.; Jupiter's Outer Satellites and Trojans, in Jupiter: The Planet, Satellites and Magnetosphere, edited by Fran Bagenal, Timothy E. Dowling, William B. McKinnon, Cambridge Planetary Science, Vol. 1, Cambridge, UK: Cambridge University Press, ISBN 978-0-521-81808-7, 2004, pp. 263-280^{[dead link]}
60. ^ Emelyanov, N.V.; Archinal, B. A.; A’hearn, M. F.; et al. (2005). "The mass of Himalia from the perturbations on other satellites". Astronomy and Astrophysics 438 (3): L33–L36. Bibcode 2005A&A...438L..33E. doi:10.1051/0004-6361:200500143. 
61. ^ http://www.cfa.harvard.edu/iau/lists/NumberedMPs.txt Archived 12 February 2011 at WebCite
62. ^ Thomas, P.C.; Burns, J.A.; Rossier, L.; et.al. (1998). "The Small Inner Satellites of Jupiter". Icarus 135 (1): 360–371. Bibcode 1998Icar..135..360T. doi:10.1006/icar.1998.5976. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/abs/1998Icar..135..360T. 
63. ^ Anderson, J.D.; Johnson, T.V.; Shubert, G.; et.al. (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. Archived from the original on 2007-06-28. http://adsabs.harvard.edu/abs/2005Sci...308.1291A. 
64. ^ ^{a b} Descamps, P.; Marchis, F.; Pollock, J. 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. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/abs/2008Icar..196..578D. 
65. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=386%20Siegena;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
66. ^ JPL Small-Body Database Browser on 20461 Dioretsa
67. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2007-06-23. http://ssd.jpl.nasa.gov/sbdb.cgi. Retrieved 2011-01-04. 
68. ^ "JPL Small-Body Database Browser: 14 Irene". 2008-04-14 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=14. Retrieved 2008-11-27. 
69. ^ "Dwarf planet Eris bigger than Pluto - Astronomy Magazine". Astronomy.com. 2007-06-14. Archived from the original on 2011-02-12. http://www.astronomy.com/asy/default.aspx?c=a&id=5673. Retrieved 2011-01-04. 
70. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1172%20;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
71. ^ JPL 508 Archived 12 February 2011 at WebCite
72. ^ Johnston's Archive about (66652) Borasisi and Pabu
73. ^ "(212) Médée." Wikipédia, l'encyclopédie libre. 16 jan 2009, 21:16 UTC. 13 mar 2009, 00:01 <http://fr.wikipedia.org/w/index.php?title=(212)_M%C3%A9d%C3%A9e&oldid=37119259>.
74. ^ "JPL Small-Body Database Browser: 92 Undina". Archived from the original on 2010-01-17. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=92. Retrieved 2010-10-09. 
75. ^ Michalak, G. (2001). "Determination of asteroid masses". Astronomy & Astrophysics 374 (2): 703–711. Bibcode 2001A&A...374..703M. doi:10.1051/0004-6361:20010731. http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/abs/2001/29/aa10228/aa10228.html. Retrieved 2008-11-10. 
76. ^ Bange, J.F; A. Bec-Borsenberger (1997). DETERMINATION OF THE MASSES OF MINOR PLANETS. p. 169. http://www.rssd.esa.int/Hipparcos/venice-proc/poster02_22.pdf. Retrieved 2008-11-10. 
77. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=127;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
78. ^ Spitale, J. N.; et al. (2006). "The orbits of Saturn's small satellites derived from combined historic and Cassini imaging observations". The Astronomical Journal 132 (2): 692–710. Bibcode 2006AJ....132..692S. doi:10.1086/505206. Archived from the original on 2011-02-12. http://www.iop.org/EJ/article/1538-3881/132/2/692/205235.html. 
79. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=129;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
80. ^ Jonathan Amos - Asteroid Lutetia has thick blanket of debris (4 October 2010) - BBC News Archived 12 February 2011 at WebCite
81. ^ average of values taken from: H. A. Weaver; S. A. Stern, M. J. Mutchler, A. J. Steffl, M. W. Buie, W. J. Merline, J. R. Spencer, E. F. Young and L. A. Young (23 February 2006). "Discovery of two new satellites of Pluto". Nature 439 (7079): 943–945. arXiv:astro-ph/0601018. Bibcode 2006Natur.439..943W. doi:10.1038/nature04547. PMID 16495991. 
82. ^ "IRAS Minor Planet Survey". Archived from the original on 2005-12-11. http://web.archive.org/web/20051211134758/http://www.psi.edu/pds/archive/simps.html. 
83. ^ ^{a b} "(90) Antiope and S/2000 (90) 1". Johnstonsarchive.net. Archived from the original on 2011-02-12. http://www.johnstonsarchive.net/astro/astmoons/am-00090.html. Retrieved 2011-01-04. 
84. ^ ^{a b c} Planetary Satellite Physical Parameters - NASA - 2011
85. ^ "JPL Small-Body Database Browser: 60558 Echeclus (2000 EC98)". 2008-05-07 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=60558. Retrieved 2008-09-09. 
86. ^ Tedesco et al. (2004). "Supplemental IRAS Minor Planet Survey (SIMPS)". IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. Archived from the original on 2010-01-17. http://www.webcitation.org/5mqp8r4gD. Retrieved December 31, 2008. 
87. ^ "JPL Small-Body Database Browser: 84 Klio". 2008-03-30 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=84. Retrieved 2008-11-06. 
88. ^ Grundy, W. M; Noll, K. S.; Stephens, D. C. (2005). "Diverse albedos of small trans-neptunian objects". Icarus 176 (1): 184–191. arXiv:astro-ph/0502229. Bibcode 2005Icar..176..184G. doi:10.1016/j.icarus.2005.01.007.  (Preprint on arXiv.)
89. ^ Barucci, M. A., de Bergh, C., Cuby, J.-G., Le Bras, A., Schmitt, B., & Romon, J. (2000). "Infrared spectroscopy of the Centaur 8405 Asbolus: first observations at ESO-VLT". Astronomy and Astrophysics 357: L53–L56. Bibcode 2000A&A...357L..53B. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/full/2000A&A...357L..53B. 
90. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=108%20Hecuba;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
91. ^ "JPL Small-Body Database Browser: C/1995 O1 (Hale-Bopp)". 2007-10-22 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Hale-Bopp. Retrieved 2008-12-05. 
92. ^ Lionel Wilson and Klaus Keil (1991). "Explosive Eruptions on Asteroids: The Missing Basalts on the Aubrite Parent Body". Abstracts of the Lunar and Planetary Science Conference 22: 1515. Bibcode 1991LPI....22.1515W. 
93. ^ "2008-07-16 Tracking News". Hohmanntransfer.com. Archived from the original on 2011-02-12. http://www.hohmanntransfer.com/mn/08/08198_0716.htm. Retrieved 2011-01-04. 
94. ^ Pierre Vingerhoets and Jan Van Gestel (2004-01-31). "E.A.O.N. : (4348) Poulydamas". European Asteroidal Occultation Network (E.A.O.N.). Archived from the original on 2011-02-12. http://www.aula.com/EAON/Files/2004.0131-4348.gif. Retrieved 2010-05-31. 
95. ^ Thomas, P.C.; Burns, J.A.; Rossier, L.; et al. (1998). "The Small Inner Satellites of Jupiter". ICARUS 135 (1): 360–371. Bibcode 1998Icar..135..360T. doi:10.1006/icar.1998.5976. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/abs/1998Icar..135..360T. 
96. ^ Britt et al. 2002, p. 486
97. ^ 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.  edit
98. ^ ^{a b c} Porco, C. C.; et al. (2007). "Saturn's Small Inner Satellites: Clues to Their Origins". Science 318 (5856): 1602–1607. Bibcode 2007Sci...318.1602P. doi:10.1126/science.1143977. PMID 18063794. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/abs/2007Sci...318.1602P. 
99. ^ F. Marchis et al. (2003). "A three-dimensional solution for the orbit of the asteroidal satellite of 22 Kalliope". Icarus 165 (1): 112. Bibcode 2003Icar..165..112M. doi:10.1016/S0019-1035(03)00195-7. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/abs/2008Icar..196..578D. 
100. ^ Porco, C.C. et al. (2006). "Physical Characteristics and Possible Accretionary Origins for Saturn's Small Satellites". Bulletin of the American Astronomical Society 37: 768. Archived from the original on 2007-07-27. http://www.lpi.usra.edu/meetings/lpsc2006/pdf/2289.pdf. 
101. ^ IOTA/IOTA-ES occultation update for (2000) Herschel
102. ^ [JPL Small-Body Database Browser : 2000 Herschel]
103. ^ "JPL Small-Body Database Browser: 65407 (2002 RP120)". Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002RP120. Retrieved 2008-02-06. 
104. ^ "The Shape of Gaspra : Galileo's observations of 951 Gaspra". Cat.inist.fr. Archived from the original on 2011-02-12. http://cat.inist.fr/?aModele=afficheN&cpsidt=3984962. Retrieved 2011-01-04. 
105. ^ ^{a b} F. Marchis et al. (2006). "Shape, size and multiplicity of main-belt asteroids I. Keck Adaptive Optics survey". Icarus 185 (1): 39. Bibcode 2006Icar..185...39M. doi:10.1016/j.icarus.2006.06.001. PMC 2600456. PMID 19081813. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2006Icar..185...39M&db_key=AST&data_type=HTML&format=&high=444b66a47d32271. 
106. ^ 11 km average diameter 2004 study NASA JPL Small-Body Database Browser on 1P
107. ^ Using the volume of an ellipsoid of 15x8x8km * an assumed rubble pile density of 0.6 g/cm³ yields a mass (m=d*v) of ~3.02E+14 kg
108. ^ Scott S. Sheppard. "Uranus' Known Satellites". Carnegie Institution (Department of Terrestrial Magnetism). http://www.dtm.ciw.edu/users/sheppard/satellites/urasatdata.html. Retrieved 2011-01-22. 
109. ^ Porco, C. C.; et al. (2007). "Saturn's Small Inner Satellites: Clues to Their Origins". Science 318 (5856): 1602–1607. Bibcode 2007Sci...318.1602P. doi:10.1126/science.1143977. PMID 18063794. Archived from the original on 2011-02-12. http://adsabs.harvard.edu/abs/2007Sci...318.1602P. 
110. ^ "Comet 9P/Tempel 1". The Planetary Society. Archived from the original on 2011-02-12. http://www.planetary.org/explore/topics/asteroids_and_comets/tempel1.html. Retrieved 2008-12-16. 
111. ^ "JPL Small-Body Database Browser: 9P/Tempel 1". 2008-10-25 last obs. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=9P. Retrieved 2008-12-16. 
112. ^ Cassini Equinox Mission: Thrym (accessed October 2010) Archived 12 February 2011 at WebCite
113. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Toutatis;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
114. ^ "Jupiter, in Astronomy"; The Columbia Encyclopedia, Sixth Edition, 2004. 52323 pgs.
115. ^ H. U. Keller, et all - E-Type Asteroid (2867) Steins as Imaged by OSIRIS on Board Rosetta - Science 8 January 2010: Vol. 327. no. 5962, pp. 190 - 193 DOI: 10.1126/science.1179559^{[dead link]}
116. ^ 4.8 km diameter NASA JPL Small-Body Database Browser on 19P/Borrelly
117. ^ NASA JPL Small-Body Database Browser on 2P/Encke
118. ^ NASA JPL Small-Body Database Browser on C/1996 B2
119. ^ "Comet Hyakutake Home Page (JPL)". .jpl.nasa.gov. Archived from the original on 2011-02-12. http://www2.jpl.nasa.gov/comet/hyakutake/index.html. Retrieved 2011-01-04. 
120. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?ID=c00081_0. Retrieved 2011-01-04. 
121. ^ Source: Porco et al. 2005 Archived 12 February 2011 at WebCite
122. ^ "Cloudbait Observatory Gallery - Comet Holmes". Cloudbait.com. Archived from the original on 2011-02-12. http://www.cloudbait.com/gallery/comet/holmes.html. Retrieved 2011-01-04. 
123. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=4055%20Magellan;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
124. ^ NASA JPL Small-Body Database Browser on 6178 (1986 DA)
125. ^ ^{a b} Roman Numerals
126. ^ Tedesco, Edward; Metcalfe, Leo (April 4, 2002). "New study reveals twice as many asteroids as previously believed" (Press release). European Space Agency. http://www.spaceref.com/news/viewpr.html?pid=7925. Retrieved 2009-10-20. 
127. ^ Minor Planet No. 100,000 Named for Space Age 50th Anniversary (2007) - Space Ref, Quote: "..about a mile in size"
128. ^ [JPL Small-Body Database Browser: 100000 Astronautica]
129. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=4769%20Castalia;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
130. ^ "(4769) Castalia." Wikipédia, l'encyclopédie libre. 20 jan 2010, 16:37 UTC. 11 oct 2010, 16:48 <http://fr.wikipedia.org/w/index.php?title=(4769)_Castalia&oldid=49048108>
131. ^ 3000 x 10^9 kg
132. ^ ^{a b} Lisse, C. M.; Fernandez; Reach; Bauer; A'Hearn; Farnham; et al. (2009). "Spitzer Space Telescope Observations of the Nucleus of Comet 103P/Hartley 2". Publications of the Astronomical Society of the Pacific 121: 968–975. Bibcode 2009PASP..121..968L. doi:10.1086/605546. http://www.jstor.org/stable/10.1086/605546. 
133. ^ "JPL Small-Body Database Browser: 14827 Hypnos (1986 JK)". Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Hypnos. Retrieved 2008-02-08. 
134. ^ Whitman, Kathryn; Alessandro Morbidelli and Robert Jedicke (2006). The Size-Frequency Distribution of Dormant Jupiter Family Comets. arXiv:astro-ph/0603106. Bibcode 2006Icar..183..101W. doi:10.1016/j.icarus.2006.02.016. 
135. ^ 2062 Aten (this version)^{[dead link]}
136. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi#top. Retrieved 2011-01-04. 
137. ^ ^{a b c} Based on an assumed density of 2.6 g/cm³ as given at the NASA NEO impact risk page http://neo.jpl.nasa.gov/risk/index.html Archived 12 February 2011 at WebCite
138. ^ BBC - Giant asteroid passes near Earth - 9 November 2011
139. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=4660%20Nereus;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 
140. ^ "NASA Scientists Get First Images of Earth Flyby Asteroid". NASA/JPL. 2008-01-25. Archived from the original on 2011-02-12. http://www.jpl.nasa.gov/news/news.cfm?release=2008-014. Retrieved 2008-01-26. 
141. ^ [http://neo.jpl.nasa.gov/risk/1994wr12.html NASA - 1994 WR12 Earth Impact Risk Summary - 2011]
142. ^ ^{a b c} BBC News - Record spin for newfound asteroid (2008) Archived 12 February 2011 at WebCite
143. ^ Alan Chamberlin. "JPL Small-Body Database Browser". Ssd.jpl.nasa.gov. Archived from the original on 2011-02-12. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1998%20KY26;orb=0;cov=0;log=0;cad=0#phys_par. Retrieved 2011-01-04. 

Further reading

• NASA Planetary Data System (PDS)
• Asteroids with Satellites
• Minor Planet discovery circumstances
• Supplemental IRAS Minor Planet Survey (SIMPS) and IRAS Minor Planet Survey (IMPS)
  • SIMPS & IMPS (V6, additional, from here)
  • Asteroid Data Archive (dead link) Archive Planetary Science Institute

External links

• Planetary fact sheets
• Asteroid fact sheet
• All (known) Bodies in the Solar System Larger than 200 Miles in Diameter - in an image, put side-by-side.
• Size comparison of asteroids and comets visited by space probe (Parent article of image at The Planetary Society)
• Scaled Solar System montage at TPS Blog