parabolic comet

English

parabolic comet (plural parabolic comets)

A comet whose orbit is parabolic and so makes only a single visit to the inner solar system

A comer whose elliptical orbit has a very high eccentricity, and thus revisits the inner solar system less than once per thousand years is termed a near-parabolic comet

单词	parabolic comet
释义	parabolic comet English Noun parabolic comet (plural parabolic comets) A comet whose orbit is parabolic and so makes only a single visit to the inner solar system Usage notes A comer whose elliptical orbit has a very high eccentricity, and thus revisits the inner solar system less than once per thousand years is termed a near-parabolic comet
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