Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary


[Astronomy Answers] [Dictionary] [AnswerBook] [Universe Family Tree] [Science] [Starry Sky] [Planet Positions] [Calculate] [Colophon]

The description of the word you requested from the astronomical dictionary is given below.

the perihelion

peri- = [Greek] around; Helios = [Greek] Sun

The perihelion is the point in an orbit around the Sun that is closest to the Sun. The opposite point is called aphelion. The more general word is perifocus.