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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[]
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 | ||
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Cis-Neptunian | NEO | ꞌAylóꞌchaxnim • Atrias • Apollos • Arjunas • Amors • Venus Trojan • Earth Trojans • Mars Trojans • Quasi-Satellites |
Main Belt/Jupiter Trojans | Asteroids • Various Collisional Families • Ceres/Vesta Trojans • Hilda • Jupiter Trojans • Quasi-Satellites | |
Distant/Centaur | Centaur • Damocloid • Saturn Trojan • Uranus Trojans • Neptune Trojans | |
TNO | Kuiper Belt/KBO | Classical (Cold • Hot) • Resonant (Plutino • Twotino) |
Scattered disc/SDO | Resonant | |
ETNO | ESDO | |
EDDO | Sednoid → Oort Cloud Objects | |
Comets | NEC • Sungrazing/Kreutz Sungrazing • Remnant • Extinct • Lost • Jupiter • Quasi-Hilda • Halley-type |