Hello All,
Relatively new PI user here.
I have 5 FITS images gathered from the CCD camera and want to sort them by quality. By quality I mean the FWHM of lets say the 10 brightest but not saturated stars. How do I do that? (OK, sort by the FWHM of the 10 brightest stars is good enough, as I don't care so much about saturation)
Thanks,
Gert