Definition of Comet

Com´et
n.1.(Astron.) A member of the solar system which usually moves in an elongated orbit, approaching very near to the sun in its perihelion, and receding to a very great distance from it at its aphelion. A comet commonly consists of three parts: the nucleus, the envelope, or coma, and the tail; but one or more of these parts is frequently wanting. See Illustration in Appendix.


Related Words

Aldebaran, Canicula, Dog Star, Hesper, Hesperus, Lucifer, North Star, Phosphor, Phosphorus, Polaris, Sirius, Venus, Vesper, celestial body, daystar, evening star, fixed stars, heavenly body, living sapphires, lodestar, morning star, orb, polar star, polestar, sphere, starry host, stars

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