Classical Mythology . a wise and beneficent centaur, teacher of Achilles, Asclepius, and others.

Astronomy . an asteroid located between Saturn and Uranus, about 100 mi. (160 km) in diameter

discovered in 1977.

(Greek mythology) the learned centaur who tutored Achilles, Asclepius, Hercules, Jason, and other heroes

an asteroid discovered in 1977; it is unique in having an orbit lying mainly between the orbits of Saturn and Uranus