Adjective
Alt. of Photometrical
Source: Webster's dictionaryRadiometric techniques in optics characterize the distribution of the radiation's power in space, as opposed to photometric techniques, which characterize the light's interaction with the human eye. Source: Internet
The most common photometric system used in astronomy allocates capital letters to different spectral regions according to filters used; I, J, H, and K cover the near-infrared wavelengths; L, M, N, and Q refer to the mid-infrared region. Source: Internet
In astronomy for example, a photometric aperture around a star usually corresponds to a circular window around the image of a star within which the light intensity is assumed. Source: Internet
It could take up to 100,000 measurements per second with a photometric accuracy of about 2% or better. Source: Internet
It is hoped that photometric studies of its X-ray and UV emissions will shed light on the large population of old M dwarfs in the galaxy. Source: Internet
Thus, for many years, Vega was used as a baseline for the calibration of absolute photometric brightness scales. Source: Internet