Definition:Aphelion
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Definition
Let $P$ be a body in orbit around the sun.
The aphelion of $P$ is the more distant of the two apsides of $P$'s orbit.
Also see
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): apse (plural apsides)
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): apsis (plural apsides)