absolute magnitude

• (US) IPA^(key): /ˈæb.səˌlut/, /ˌæb.səˈljut/ + IPA^(key): /ˈmæɡ.nɪ.tjud/, /ˈmæɡ.nɪ.tud/

absolute magnitude (countable and uncountable, plural absolute magnitudes)

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

• apparent magnitude
• bolometric magnitude