Astro*Dictionary by Michael Erlewine
1 article for "Escape Velocity"
Escape Velocity [Astro*Index]The speed necessary to escape from the gravitational field of a body. The velocity, Ve, required to escape from an orbit is obtained by allowing the semi-major axis, a, to tend to infinity, yielding: Ve = sqrt(2gR2/r)
See also: ♦ Orbital Velocity ♦ Semi-major Axis
Astro*Index Copyright © 1997 Michael Erlewine