(n.) 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.

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