Its precedence over its rivals Vega and Capella, long in dispute, has been settled by the Harvard photometry.
Celestial photography, photometry and spectroscopy sum up its fields of activity.
This arrangement leaves untouched the old difficulty in photometry, that arising from the different colors of different lights.
An important matter in connexion with glow lamps is their photometry.
Considerations drawn from photometry were also lost sight of, because that art was still undeveloped.
Then came astrophysics, including photography, spectroscopy and photometry.
The measurement of the intensity, brightness, or other properties of light. Also called photometrics. See also luminous intensity.