Radial Velocity Definition
noun
The velocity, or a component of the velocity, of an object as it moves toward or away from an observer, as a star or galaxy observed from Earth. Periodic changes in the radial velocities of stars may indicate the presence of orbiting planets even if the planets themselves are not directly observable.
American Heritage
Other Word Forms of Radial Velocity
Noun
Singular:
radial velocity
Plural:
radial velocitiesRelated Articles
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