Search Result for "absolute magnitude":
Wordnet 3.0

NOUN (1)

1. (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; 



WordNet (r) 3.0 (2006):

absolute magnitude
    n 1: (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