- perihelions
- per·i·he·li·on || ‚perɪ'hɪËlɪən n. closest point to the sun in the orbit of a planet or comet
English contemporary dictionary. 2014.
perihelions
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perihelion — [per΄ə hē′lē ən, per΄ihēl′yən] n. pl. perihelions or perihelia [per΄i hē′lēə, per΄i hēl′ə] [ModL < Gr peri , around + hēlios, the SUN1] the point nearest the sun in the orbit of a planet, comet, or man made satellite: see APHELION … English World dictionary
sungrazer — ¦ ̷ ̷ ¦ ̷ ̷ ̷ ̷ noun : any of a group of comets whose perihelions are very close to the sun and which are often destroyed by their close approach to it … Useful english dictionary
