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Centaurs are objects between Jupiter and Neptune’s orbits. They don’t classify as either objects on the Asteroid Belt or Kuiper Belt. Centaurs usually have quite unstable orbits because they cross or have once crossed the orbits of one or maybe even multiple of the gas giant or ice giant planets. Centaurs usually aren’t any bigger then around 500 kilometers (~300 miles). Centaurs are similar to both asteroids and comets. Estimates for the total number of centaurs that are greater than 1 km in diameter might be as low as ~45000, to more than ~10000000! They are named after the mythological centaurs that were a mixture of horse and human. The first Centaur was discovered in 1920.

List of Notable Centaurs[]

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Name Reason Discovery Year
944 Hidalgo First Centaur ever discovered (1920) 1920
2060 Chiron First Centaur discovered to be recognized as a distinct population in the Solar System. 1977
5145 Pholus Second Centaur discovered after Chiron. 1992
10199 Chariklo Known to have rings, Also the biggest centaur. 1997
Small Solar System Bodies including comets
Cis-Neptunian NEO ꞌAylóꞌchaxnimAtriasApollosArjunasAmorsVenus TrojanEarth TrojansMars TrojansQuasi-Satellites
Main Belt/Jupiter Trojans Asteroids • Various Collisional Families • Ceres/Vesta Trojans • HildaJupiter TrojansQuasi-Satellites
Distant/Centaur CentaurDamocloidSaturn TrojanUranus TrojansNeptune Trojans
TNO Kuiper Belt/KBO Classical (Cold • Hot) • Resonant (PlutinoTwotino)
Scattered disc/SDO Resonant
ETNO ESDO
EDDO SednoidOort Cloud Objects
Comets NECSungrazing/Kreutz Sungrazing • Remnant • Extinct • Lost • JupiterQuasi-HildaHalley-type