noun Date: 1902 a measure of the intrinsic luminosity of a celestial body (as a star) expressed as the apparent magnitude the body would have if viewed from a distance of 10 parsecs
ABSOLUTE MAGNITUDE
Meaning of ABSOLUTE MAGNITUDE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012