heliocentric parallax


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heliocentric parallax

See annual parallax.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Heliocentric Parallax

 

(also, annual parallax), the small angle of the star in a right triangle, in which the hypotenuse is the distance from the sun to the star and the short leg is the semimajor axis of the earth’s orbit. Heliocentric parallax is used to determine distance to the stars: owing to the great remoteness of stars, distances to them may be considered inversely proportionate to the heliocentric parallax.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

heliocentric parallax

[¦hē·lē·ō¦sen·trik ′par·ə‚laks]
(astronomy)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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