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visual magnitude

British  

noun

  1. astronomy the magnitude of a star as determined by visual observation Compare photoelectric magnitude

"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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The box also includes data that few people other than telescope owners will need, like the RA positioning and the object’s visual magnitude.

From New York Times Apr. 28, 2010

When the visual magnitude and the type of spectrum are known, the photographic magnitude may be obtained, with a generally sufficient accuracy, by adding the colour-index according to the table 1 in §15 above.

From Lectures on Stellar Statistics by Charlier, Carl Vilhelm Ludvig

The photographic magnitude of a star will in these lectures be denoted by m′, corresponding to a visual magnitude m.

From Lectures on Stellar Statistics by Charlier, Carl Vilhelm Ludvig

And thus so far as the primary facts of sensation go, visual figure and tactile figure, visual magnitude and tactile magnitude, visual motion and tactile motion, are truly unlike, and have no common term.

From Critiques and Addresses by Huxley, Thomas Henry

Sirius and Canopus are the only stars in the sky having a negative value of the apparent visual magnitude.

From Lectures on Stellar Statistics by Charlier, Carl Vilhelm Ludvig

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