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solar apexSee apex.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
solar apex[′sō·lər ′ā‚peks]
A point toward which the solar system is moving; it is about 10° southwest of the star Vega.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.