Astro*Dictionary by Michael Erlewine
1 article for "Periapsis"
Periapsis [Astro*Index]A generic term. The point in an orbit that lies closest to the centre of gravitational attraction.
| For bodies which orbit about the Sun, | this point is called perihelion; |
| about the Moon, | perilune; |
| about the Earth, | perigee; |
| about Mars, | perimartian; |
| about Jupiter, | perijove; |
| about a star, | periastron. |
See also:
♦ Apoapsis
Astro*Index Copyright © 1997 Michael Erlewine