apparent magnitude Definition

absolute magnitude, standard candle, variable star, heliometer, binary system, gravitational field, sidereal time, pyrheliometer, luminous energy, hubble law, spectral type, optical phenomenon, absorption band, exposure meter, physical phenomenon, multiple star, astrometer, magnitude, gravity meter, solar constant, dynactinometer, tyndall effect, calorescence, light second, gravitational force, heliometry, compton effect, binary star, light meter, backstaff, almucantar, ephemeris time, teinoscope, magnetograph, factor of proportionality, sidereal day, physical property, rydberg constant, chromatoscope, photoscope, star chart, gravitational constant, mean solar day, lapse rate, magnetic moment, sidereal year, spectrohelioscope, astronomy unit, radiant energy, magnetic lens, astrometeorology, isohel, relativistic mass, random variable, absolute temperature, temperature scale, isochasm, flux density, heat capacity, diradiation, white dwarf, absolute space, gravitational collapse, scalogram, meteorometer, independent variable, mass defect, quantum number, macrometer, radiation pyrometer, lucimeter, mean free path, evection, corradiation, rest mass, terrestrial telescope, metergram, luminosity, roche limit, eradiation, larmor precession, photovisual, cosmic background radiation, isochromatic, holometer, hydrodynamometer, beamless, solar day, atomic mass, rheobase, isochasmic, outmeasure, brightness, anemography, gas constant, rheochord, holophotal, trioctile, acronycally, zeeman effect,