Quote:
Originally Posted by rogerg
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I assumed it would calculate the magnitude based on the brightness of other stars in the image and then using the single brightest pixel value from the estimate star, I wonder why having more surrounding the star being included in the estimate has n impact? I should RTFM on the subject....
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I think Astrometrica doesn't use aperture photometry, it fits a point spread function (PSF) to the pixels.
-Ivan