apparent magnitude

noun 0.822

absolute magnitude

noun 0.744

apparent brightness

noun 0.681

intrinsic brightness

noun 0.627

luminosity

noun 0.610

magnitude

noun 0.591

photometry

noun 0.579

luminance

noun 0.573

luminous intensity

noun 0.569

luminosity distance

noun 0.564

visible light

noun 0.556

luminosity function

noun 0.550

visual acuity

noun 0.547

brightness

noun 0.546

visual binary

noun 0.533

magnification

noun 0.527

visual

noun 0.520

illuminance

noun 0.516

visual angle

noun 0.510

light curve

noun 0.508

visible spectrum

noun 0.507