luminosity

noun 0.748

luminosity function

noun 0.702

luminance

noun 0.636

luminous intensity

noun 0.622

luminous energy

noun 0.586

light year

noun 0.583

intrinsic brightness

noun 0.574

lum

noun 0.569

visual magnitude

noun 0.564

apparent brightness

noun 0.552

distance

noun 0.549

distance function

noun 0.549

luminescence

noun 0.549

absolute magnitude

noun 0.539

second distance

noun 0.534

illuminance

noun 0.529

lumen

noun 0.528

apparent magnitude

noun 0.526

distancer

noun 0.525

cosmological horizon

noun 0.524

cosmological redshift

noun 0.519

distance formula

noun 0.509