Comets
Erratic members of the Solar system, usually of small mass. Luminous bodies, wandering through space, or circulating around the Sun, and visible only when they approach the Sun. They usually consist of three elements: nucleus, envelope, and tail. The superstitious once considered them to be evil omens. Those pursuing an elongated orbit are periodic and return at fixed intervals. Those with a parabolic or hyperbolic orbit are expected never to return. The astrological significance of comets has been the subject of much study, but so far no definite conclusions have been reached. Suggestion has been advanced that Donate’s comet, which […]