Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Radial trajectory
open-in-new
<p>In <a href="/facts/Astrodynamics/oB3tqNG9">astrodynamics</a> and <a href="/facts/Celestial_mechanics/FA3uR78J">celestial mechanics</a> a radial trajectory is a <a href="/facts/Kepler_orbit/XvdtxmKl">Kepler orbit</a> with zero <a href="/facts/Angular_momentum/7TuSVFxq">angular momentum</a>. Two objects in a radial trajectory move directly towards or away from each other in a straight line. </p>