ASTEROIDS : CENTAURS AND SCATTERED OBJECTS

Centaurs are asteroids whose orbit lies between Jupiter and Neptune. Scattered objects are asteroids that can travel beyond the orbit of Neptune without any resonance with this planet. To the present date (December 3, 2022), we found 1450 such objects (including 416 confirmed and numbered). Their orbits are not stable: they are highly elliptical and are very disturbed by the giant planets.

It is believed that these objects look like comets, with a composition of ice and rocks. Some, however, are very large as Sedna and Eris whose size is of the order of 1600 to 2400 km, making them the largest asteroids known at the present date.

Some Centaurs and "scattered objects"

Some Centaurs and "scattered objects" ordered from the larger ones until the more recently discovered.

Number	Name	Size in km	Distance from Sun in AU	eccentricity	Inclination	Date of discovery
2060	Chiron	170	8.44/18.76	0.379	7°	1977
5145	Pholus	175	8.65/31.83	0.573	25°	1992
7066	Nessus	55	11.80/37.05	0.517	16°	1993
8405	Absolus	67	6.83/29.08	0.619	18°	1995
10199	Chariklo	210	13.07/18.44	0.170	23°	1997
10370	Hylonome	110	18.85/30.93	0.243	4°	1995
15874	1996 TL66	340	35.03/134	0.586	24°	1996
38084	1999 HB129	160	32.61/78.52	0.413	13°	1999
121725	1999 XX143	85	8.49/24.97	0.492	7°	1999
87269	2000 OO67	70	20.76/1099	0.963	20°	2000
42301	2001 UR163	425	36.8/45.8	0.283	0.8°	2001
84522	2002 TC302	700	39/71	0.293	35°	2002
55576	2002 GB10	130	12.34/29.92	0.416	14°	2002
90377	Sedna	1600	76/914	0.848	12°	2003
136199	Eris	2400	38/97	560	44°	2003
184212	2004 PB112	130	35/206	0.712	15°	2004
413666	2005 VJ119	19	11/61	0.690	7°	2005
-	2006 HV122	160	37/123	0.533	16°	2006
-	2006 HH123	250	30/82	0.464	44°	2006
-	2008 ST291	400	43/157	0.573	721°	2008
471143	2010 EK139	500	33/105	0.529	29°	2010
-	2013 BK78	8	8/71	0.792	2°	2005