found: Work cat: Reinhart, M. Chiron, Pholus and Nessus : to the edge and beyond, 2014:back cover (after being reclassified several times, Chiron is now the prototype of a new sub-category of celestial objects called the Centaurs)
found: Britannica.com online, viewed 11 Apr. 2018(Centaur object, or Centaur: any of a population of small bodies, similar to asteroids in size but comparable to comets in composition, that revolve around the Sun in the outer solar system, mainly between the orbits of Jupiter and Neptune)
found: Swinburne University website, viewed 11 Apr. 2018:COSMOS, the SAO encyclopedia of astronomy (Centaurs are icy planetesimals located between Jupiter and Neptune)
found: Wikipedia, viewed 11 Apr. 2018(Centaurs are small solar system bodies; they typically behave with characteristics of both asteroids and comets; they are named after the mythological centaurs that were a mixture of horse and human)
found: Jet Propulsion Laboratory news, July 25, 2013, viewed online June 7, 2018(NASA's WISE finds mysterious centaurs may be comets: The true identity of centaurs, the small celestial bodies orbiting the sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics. Are they asteroids or comets? A new study of observations from NASA's Wide-field Infrared Survey Explorer (WISE) finds most centaurs are comets. Until now, astronomers were not certain whether centaurs are asteroids flung out from the inner solar system or comets traveling in toward the sun from afar. Because of their dual nature, they take their name from the creature in Greek mythology)
