You searched for: “apparent magnitude”
apparent magnitude (m) (s) (noun), apparent magnitudes (pl)
A numerical assessment of the brightness of a heavenly body: An apparent is the intensity of light of a star as seen from the planet Earth.

3. An apparent is the numeric calculation of the luminosity of stars as they appear on the celestial sphere.

This entry is located in the following unit: Astronomy and related astronomical terms (page 2)