Photometry (astronomy)
THE DETERMINATION OF LIGHT INTENSITIES OF ASTRONOMICAL BODIES, INCLUDING STARS
Photometric astrometry; Brighter-fatter effect; Photoelectric magnitude; CCD photometry
Photometry, from Greek photo- ("light") and -metry ("measure"), is a technique used in astronomy that is concerned with measuring the flux or intensity of light radiated by astronomical objects. This light is measured through a telescope using a photometer, often made using electronic devices such as a CCD photometer or a photoelectric photometer that converts light into an electric current by the photoelectric effect.