Noun
That branch of science which treats of the measurement of the intensity of light.
Source: Webster's dictionaryAuxiliary information, including UBV photometry, MK spectral types, data on the variability and binary nature of the stars, orbits when available, and miscellaneous information to aid in determining the reliability of the data are also listed. Source: Internet
Detecting binaries with these methods requires accurate photometry and has to be done with space telescopes. citation Astrometric binaries Astronomers have discovered some stars that seemingly orbit around an empty space. Source: Internet
For example, photometry on closely separated double stars may only be able to produce a measurement of their combined light output. Source: Internet
The photometry units are designed to take this into account, and therefore are a better representation of how "bright" a light appears to be than raw intensity. Source: Internet
Unlike the MOST result, the variation seen in the WIRE photometry was in agreement with radial velocity measurements from the ground. Source: Internet