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radial velocity
(redirected from radial velocities)

    Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.07 sec.
radial velocity, in astronomy, the speed with which a star moves toward or away from the sun. It is determined from the red or blue shift in the star's spectrum spectrum, arrangement or display of light or other form of radiation separated according to wavelength, frequency, energy, or some other property. Beams of charged particles can be separated into a spectrum according to mass in a mass spectrometer (see mass
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11b) and moved over the site with impressive outbound radial velocities to the southwest of Reese.
Structural characteristics of a particularly intense convectively ... by Schroeder, John L. / National Weather Digest
Such an instrument will be useful for studying the distinctive spectral features of hot, rapidly rotating B[e] supergiant stars and for measuring shifts in the positions of spectral lines to determine the radial velocities of stars in binary systems.
Low-budget stellar spectroscopy by Peterson, Ivars / Science News
2003: Signal Power and Radial Velocities from 30 July 2001 at Merriman, NE.
Examination of a long-lived heat burst event in the northern plains by Johnson, Jeffrey S. / National Weather Digest
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