periastron
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See also: Periastron
English[edit]
Etymology[edit]
From Ancient Greek περί (perí, “around”) + ἄστρον (ástron, “star”).
Pronunciation[edit]
Noun[edit]
periastron (plural periastrons or periastra)
- (astronomy) That point of the orbit of a celestial body which is closest to the star around which the body is orbiting.
Antonyms[edit]
Related terms[edit]
- see periapsis