<Table> <Tr> <Td> </Td> <Td> It has been suggested that this article be merged into Apsis . (Discuss) Proposed since January 2018 . </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> It has been suggested that this article be merged into Apsis . (Discuss) Proposed since January 2018 . </Td> </Tr> <P> The perihelion (/ ˌpɛrɪˈhiːliən /) of any orbit of a celestial body about the Sun is the point where the body comes closest to the Sun . It is the opposite of aphelion (/ æpˈhiːliən /), which is the point in the orbit where the celestial body is farthest from the Sun . </P> <P> The words perihelion and aphelion were coined by Johannes Kepler to describe the orbital motion of the planets . The words are formed from the prefixes peri - (Greek: περί, near) and apo - (Greek: ἀπό, away from) affixed to the Greek word for the sun, ἥλιος . </P>

A planet is furthest from the sun in its elliptical orbit when it is at