Hello Andy, Steve,
Thanks to both of you for posting your spectra – they are impressive and in my case certainly of great help because I can compare with my own low resolution spectra using SA200 & DSLR. I have been following Chi Cygni & AG Pegasi [and also CH Cygni] since July/Aug, at low reolution and at other end of learning curve to you. I have used several different references to correct for for instrument and atmospheric extinction effects, but am wondering if I should be using some recognised standard stars that are in common use – depending on target RA/DECL? So far I’ve tried to find a nearby A class star of roughly the same magnitude to use, but is there somewhere a preferred/recommended list?