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apparent magnitude

noun, Astronomy.
the magnitude of a star as it appears to an observer on the earth.
Origin of apparent magnitude
First recorded in 1870-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for apparent magnitude
Historical Examples
  • The comet of 1652, so carefully observed by Hevelius, almost equaled the moon in apparent magnitude.

    Comets and Meteors Daniel Kirkwood
  • The meteors varied in apparent magnitude from the smallest visible points to fire-balls equaling the moon in diameter.

    Comets and Meteors Daniel Kirkwood
  • The apparent magnitude of an object depends upon the angle which it subtends to the eye of the observer.

  • Its distance then can be determined by contrasting its actual candle power with the apparent magnitude as seen from the earth.

  • Its approach was indicated, not so much by any perceptible change of position, as by an increase of apparent magnitude.

  • The apparent magnitude of its nucleus was three times greater than that of Jupiter.

    Comets and Meteors Daniel Kirkwood
  • The sun on this scale of comparative brightness is of the -26.7 apparent magnitude.

    Astronomy for Young Folks Isabel Martin Lewis
  • Thus he looks down, as it were, upon the heaviest seas, and this greatly diminishes their apparent magnitude and elevation.

    Rollo on the Atlantic Jacob Abbott
  • The inward grace required must not be measured by the apparent magnitude of the burden, but the strength of the sustainer.

    Patience James W. Alexander
  • A fast reading with the photocell gave me the apparent magnitude and a comparison with its absolute magnitude showed its distance.

    The Repairman Harry Harrison
British Dictionary definitions for apparent magnitude

apparent magnitude

another name for magnitude (sense 4)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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apparent magnitude in Science
apparent magnitude  
See under magnitude.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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