Definitions for absolute magnitude
Random House Webster's College Dictionary
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 of absolute magnitude:
(astronomy) the magnitude that a star would have if it were viewed from a distance of 10 parsecs (32.62 light years) from the earth
The intrinsic luminosity,x that a celestial body would have if viewed from a distance of 10 parsecs.
Use the citation below to add this definition to your bibliography:
"absolute magnitude." Definitions.net. STANDS4 LLC, 2013. Web. 24 May 2013. <http://www.definitions.net/definition/absolute magnitude>.