absolute magnitude

noun Astronomy.

the magnitude of a star as it would appear to a hypothetical observer at a distance of 10 parsecs or 32.6 light-years.
Compare apparent magnitude.

Origin of absolute magnitude

First recorded in 1900–05

Words nearby absolute magnitude

absolute hyperopia, absolute impediment, absolute index of refraction, absolute judgment, absolute leukocytosis, absolute magnitude, absolute majority, absolute maximum, absolute minimum, absolute monarchy, absolute music

British Dictionary definitions for absolute magnitude

absolute magnitude

noun

the apparent magnitude a given star would have if it were situated at a distance of 10 parsecs (32.6 light years) from the earth

Scientific definitions for absolute magnitude

absolute magnitude

See under at magnitude.