This is much more accurate than using a simple photometer
as the reading is discritised across the
CCD chip. Light from neighbouring stars
can be removed from the image and the
light flux from the galaxy calculated
Pho`to*met"ric (?), Pho`to*met"ric*al (?), a. [Cf. F. photom'etrique.]
Of or pertaining to photometry, or to a photometer.
© Webster 1913.
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