stellar parallax


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stellar parallax

[′stel·ər ′par·ə‚laks]
(astronomy)
The subtended angle at a star formed by the mean radius of the earth's orbit; it indicates distance to the star.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The trouble was, the stellar parallax was so small that not till the 1830s did telescopes become sufficiently refined to detect it.
His conclusion: Bessel justly receives credit for the first determination of stellar parallax. After presenting the scientific case with lawyerly precision, Otto Struve explains, "The important thing, however, is not ...
In the wobble of Gamma Draconis, Bradley had gathered the first definitive proof, not of stellar parallax, but of the Earth's orbital movement around the Sun.
Bessel would finish, in a dead heat, the 2,000-year race to measure a stellar parallax, and thus determine the true distance to the stars.