Reply To: Need help with instrumental response for low-res spectroscopy

Perhaps more significantly though is that in this case it confirms that the MILES spectrum of HD185859 appears to be ok, despite it being a blue hypergiant emission line star (B0.5 Iae) with a very high IS extinction of E(B-V) = 0.6 (I have to say it would not have been my first choice as a reference star !)

• This reply was modified 4 months, 1 week ago by Robin Leadbeater.