Hi again!
Looking more into this now in daylight. Robin, how do you determine that HD207673 is reddened`? By comparing with an artificial Pickles spectrum? Or with Paolo Berardi’s spreadsheet and functions?
And: how would I find good ref stars to check and validate my process? And for taking good spectra moving forward – let’s say SS Cyg: I found HD207673 through the ReferenceStarFinder_V3 excel file. As I understand it, I would need to check the ref stars more thoroughly. But how? Any advice is warmly welcome.
Magnus