What does "absolute magnitude" mean?

The intrinsic luminosity that a celestial body would have if viewed from a distance of 10 parsecs or about 32.6 light years.

What is a synonym for "absolute magnitude"?

Common synonyms include: black hole, hyades, magnitude, nova, pleiades, population.

/ˈæb.səˌlut/ noun

noun ·Rare ·Advanced level

Noun

1
The intrinsic luminosity that a celestial body would have if viewed from a distance of 10 parsecs or about 32.6 light years. countable, uncountable
2
(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