List of asteroids in the Solar System

The following is a list of asteroids in our Solar System. For more specific details about any specific asteroid, please go to that asteroid's article by selecting its name from the table below. The first table below currently lists the eighteen largest known asteroids whose orbit is nearer to the Sun than that of Jupiter. The second table provides information about smaller asteroids of note. The third table lists asteroids that have the same names as moons of various planets. The fourth table lists asteroids that are also cross-listed as comets.

In the tables below, "Number" refers to an asteroid's classification number--each asteroid, when discovered, is given a unique identifying number.

Table of contents

1 Largest Known Asteroids within Jupiter's Orbit
2 Other Noteworthy Asteroids
3 Asteroids that share the same names as moons
4 Numbered asteroids that are also comets
5 Related topics
6 External links

Largest Known Asteroids within Jupiter's Orbit

Number Name Diameter (km) Mean Distance
from Sun (in AU) Date Discovered Discoverer
1 Ceres 1003 2.766 January 1 1801 Piazzi, G
2 Pallas 608 2.773 March 28 1802 Olbers, H. W
4 Vesta 538 2.361 March 29 1807 Olbers, H. W
10 Hygeia 450 3.136 April 12 1849 de Gasparis, A
31 Euphrosyne 370 3.148 September 1 1854 Ferguson, J
704 Interamnia 350 3.067 October 2 1910 Cerulli, V
511 Davida 323 3.170 May 30 1903 Dugan, R. S
65 Cybele 309 3.437 March 8 1861 Tempel, E. W
52 Europa 289 3.099 February 4 1858 Goldschmidt, H
624 Hektor 283 5.203 February 10 1907 Kopff, A
451 Patientia 276 3.060 December 4 1899 Charlois, A
15 Eunomia 272 2.644 July 29 1851 de Gasparis, A
16 Psyche 250 2.919 March 17 1851 de Gasparis, A
48 Doris 250 3.109 September 19 1857 Goldschmidt, H
92 Undina 250 3.189 July 7 1867 Peters, C. H. F
324 Bamberga 246 2.682 February 25 1892 Palisa, J
3 Juno 240 2.667 September 1 1804 Harding, K. L
24 Themis 234 3.129 April 5 1853 de Gasparis, A
95 Arethusa 230 3.073 November 23 1867 Luther, R

Number	Name	Diameter (km)	Mean Distance from Sun (in AU)	Date Discovered	Discoverer
1	Ceres	1003	2.766	January 1 1801	Piazzi, G
2	Pallas	608	2.773	March 28 1802	Olbers, H. W
4	Vesta	538	2.361	March 29 1807	Olbers, H. W
10	Hygeia	450	3.136	April 12 1849	de Gasparis, A
31	Euphrosyne	370	3.148	September 1 1854	Ferguson, J
704	Interamnia	350	3.067	October 2 1910	Cerulli, V
511	Davida	323	3.170	May 30 1903	Dugan, R. S
65	Cybele	309	3.437	March 8 1861	Tempel, E. W
52	Europa	289	3.099	February 4 1858	Goldschmidt, H
624	Hektor	283	5.203	February 10 1907	Kopff, A
451	Patientia	276	3.060	December 4 1899	Charlois, A
15	Eunomia	272	2.644	July 29 1851	de Gasparis, A
16	Psyche	250	2.919	March 17 1851	de Gasparis, A
48	Doris	250	3.109	September 19 1857	Goldschmidt, H
92	Undina	250	3.189	July 7 1867	Peters, C. H. F
324	Bamberga	246	2.682	February 25 1892	Palisa, J
3	Juno	240	2.667	September 1 1804	Harding, K. L
24	Themis	234	3.129	April 5 1853	de Gasparis, A
95	Arethusa	230	3.073	November 23 1867	Luther, R

Other Noteworthy Asteroids

Number Name Diameter (km) Year Discovered Comment
5 Astraea 117 December 8 1845 First asteroid discovered in 38 years after original four
90 Antiope 80 + 80 October 1 1866 Double asteroid with two nearly equal components; its double nature was discovered using adaptive optics
139 Juewa 162 October 10 1874 First asteroid discovered in China, by James Craig Watson. The name was chosen by Chinese officials: 瑞華, or in modern pinyin, ruìhuá
141 Lumen 135 January 13 1875 Discovered by Paul Henry
243 Ida 56 × 24 × 21 September 29 1884 Visited by Galileo probe
Dactyl 1.4 1991 Moon of 243 Ida
253 Mathilde 66 × 48 × 46 November 12 1885 Visited by NEAR Shoemaker
323 Brucia December 22 1891 First asteroid discovered by means of astrophotography rather than visual observation
433 Eros 13 × 13 × 33 August 13 1898 Visited by NEAR Shoemaker
624 Hektor 370 × 195 February 10 1907 Largest Jovian Trojan asteroid discovered
944 Hidalgo October 31 1920 Longest orbital period of any asteroid in the main asteroid belt
951 Gaspra 19 × 12 × 11 July 30 1916 Visited by Galileo probe
1566 Icarus June 27 1949 Apollo class asteroid; perihelion is closer to the Sun than Mercury
1620 Geographos September 14 1951 Apollo class asteroid
2060 Chiron 170 October 18 1977 First Centaur to be discovered
2063 Bacchus April 24 1977
3753 Cruithne 5 October 10 1986 Unusual Earth-associated orbit
4179 Toutatis 4.5 × 2.4 × 1.9 January 4 1989 Will approach Earth closely in 2004
4769 Castalia 1.8 × 0.8 August 9 1989 First asteroid to be imaged
5261 Eureka June 20 1990 First Martian Trojan asteroid (L₅ point) discovered
29075 1950DA 1.1 February 23 1950 Will approach Earth very closely in 2880
1997 XR2 1997 Only asteroid to rank greater than zero on the impact-risk Torino scale (it's ranked 1)
1998 KY26 0.030 June 2 1998 Approached within 800,000km of Earth
2002 AA29 0.1 January 9 2002 Unusual Earth-associated orbit
2004 FH 0.030 2004 Discovered before it approached within 43,000km of Earth on 2004-03-18.

Number	Name	Diameter (km)	Year Discovered	Comment
5	Astraea	117	December 8 1845	First asteroid discovered in 38 years after original four
90	Antiope	80 + 80	October 1 1866	Double asteroid with two nearly equal components; its double nature was discovered using adaptive optics
139	Juewa	162	October 10 1874	First asteroid discovered in China, by James Craig Watson. The name was chosen by Chinese officials: 瑞華, or in modern pinyin, ruìhuá
141	Lumen	135	January 13 1875	Discovered by Paul Henry
243	Ida	56 × 24 × 21	September 29 1884	Visited by Galileo probe
	Dactyl	1.4	1991	Moon of 243 Ida
253	Mathilde	66 × 48 × 46	November 12 1885	Visited by NEAR Shoemaker
323	Brucia		December 22 1891	First asteroid discovered by means of astrophotography rather than visual observation
433	Eros	13 × 13 × 33	August 13 1898	Visited by NEAR Shoemaker
624	Hektor	370 × 195	February 10 1907	Largest Jovian Trojan asteroid discovered
944	Hidalgo		October 31 1920	Longest orbital period of any asteroid in the main asteroid belt
951	Gaspra	19 × 12 × 11	July 30 1916	Visited by Galileo probe
1566	Icarus		June 27 1949	Apollo class asteroid; perihelion is closer to the Sun than Mercury
1620	Geographos		September 14 1951	Apollo class asteroid
2060	Chiron	170	October 18 1977	First Centaur to be discovered
2063	Bacchus		April 24 1977
3753	Cruithne	5	October 10 1986	Unusual Earth-associated orbit
4179	Toutatis	4.5 × 2.4 × 1.9	January 4 1989	Will approach Earth closely in 2004
4769	Castalia	1.8 × 0.8	August 9 1989	First asteroid to be imaged
5261	Eureka		June 20 1990	First Martian Trojan asteroid (L₅ point) discovered
29075	1950DA	1.1	February 23 1950	Will approach Earth very closely in 2880
	1997 XR2		1997	Only asteroid to rank greater than zero on the impact-risk Torino scale (it's ranked 1)
	1998 KY26	0.030	June 2 1998	Approached within 800,000km of Earth
	2002 AA29	0.1	January 9 2002	Unusual Earth-associated orbit
	2004 FH	0.030	2004	Discovered before it approached within 43,000km of Earth on 2004-03-18.

Asteroids that share the same names as moons

Number Name Namesake Moon of
9 Metis Metis Jupiter
38 Leda Leda Jupiter
52 Europa Europa Jupiter
55 Pandora Pandora Saturn
74 Galatea Galatea Neptune
85 Io Io Jupiter
106 Dione Dione Saturn
113 Amalthea Amalthea Jupiter
171 Ophelia Ophelia Uranus
218 Bianca Bianca Uranus
239 Adrastea Adrastea Jupiter
577 Rhea Rhea Saturn
593 Titania Titania Uranus
666 Desdemona Desdemona Uranus
1162 Larissa Larissa Neptune
1809 Prometheus Prometheus Saturn
1810 Epimetheus Epimetheus Saturn
2758 Cordelia Cordelia Uranus
4450 Pan Pan Saturn

Number	Name	Namesake	Moon of
9	Metis	Metis	Jupiter
38	Leda	Leda	Jupiter
52	Europa	Europa	Jupiter
55	Pandora	Pandora	Saturn
74	Galatea	Galatea	Neptune
85	Io	Io	Jupiter
106	Dione	Dione	Saturn
113	Amalthea	Amalthea	Jupiter
171	Ophelia	Ophelia	Uranus
218	Bianca	Bianca	Uranus
239	Adrastea	Adrastea	Jupiter
577	Rhea	Rhea	Saturn
593	Titania	Titania	Uranus
666	Desdemona	Desdemona	Uranus
1162	Larissa	Larissa	Neptune
1809	Prometheus	Prometheus	Saturn
1810	Epimetheus	Epimetheus	Saturn
2758	Cordelia	Cordelia	Uranus
4450	Pan	Pan	Saturn

Numbered asteroids that are also comets

Number Name Cometary name Comment
2060 Chiron 95P/Chiron Discovered in 1977 as the first Centaur asteroid, later found to display cometary behavior (including a coma)
4015 Wilson-Harrington 107P/Wilson-Harrington In 1992, it was realized that asteroid 1979VA's orbit matched it with the positions of the lost comet Wilson-Harrington (1949 III)
7968 Elst-Pizarro 133P/Elst-Pizarro Discovered in 1996 as a comet, but orbitally matched to asteroid 1979 OW₇

Number	Name	Cometary name	Comment
2060	Chiron	95P/Chiron	Discovered in 1977 as the first Centaur asteroid, later found to display cometary behavior (including a coma)
4015	Wilson-Harrington	107P/Wilson-Harrington	In 1992, it was realized that asteroid 1979VA's orbit matched it with the positions of the lost comet Wilson-Harrington (1949 III)
7968	Elst-Pizarro	133P/Elst-Pizarro	Discovered in 1996 as a comet, but orbitally matched to asteroid 1979 OW₇

Note there are a quite a few other cases where a non-numbered asteroid with only a systematic designation (such as 2001 OG108) turned out to be a comet. The above table lists only numbered asteroids that are also comets.