Definition:Peri-
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Definition
Let $A$ be a body in elliptical orbit $O$ around another body $B$.
Peri- is a prefix which indicates the closer of the two apsides of $O$ to the center of mass of $B$.
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)