# Ensemble photometry

The ensemble photometry is a technique of a light curve construction which utilitizes measurements of multiple comparison (constant) stars in order to reduce the random errors. The method implemented in the C-Munipack software can be called “strict” ensemble photometry, because it requires that all stars from the comparison star set are present on every frame, if this is not satistifed, the frame is discarded from the light curve. Fluxes (not magnitudes) of the comparison stars are summed up to get instrumental magnitude of an “artificial” comparison star which is than used to find out differential brightness of a variable star.

See also

Light curve