A guide to CCD data reduction and stellar photometry using astropy and affiliated packages The inspiration for this work is two guides and a book: A User's Guide to Stellar CCD Photometry with IRAF Massey and Davis (1992) A User's Guide to CCD Reductions with IRAF Massey (1997) Web version of the guide The rendered version of the guide is here. Try out the notebooks in the cloud: click the button below