precession in right ascension

precession in right ascension

[prē′sesh·ən in ′rīt ə′sen·shən]
(astronomy)
The component of general precession of the earth along the celestial equator, amounting to about 46.1″ per year.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.