absolute-magnitude

absolute magnitude

noun Astronomy.
the magnitude of a star as it would appear to a hypothetical observer at a distance of 10 parsecs or 32.6 light-years.


Origin:
1900–05

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Collins
World English Dictionary
absolute magnitude
 
n
the apparent magnitude a given star would have if it were situated at a distance of 10 parsecs (32.6 light years) from the earth

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
absolute magnitude  
See under at magnitude.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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