Books › Forums › Spectroscopy › TWIN BOOK ASTRONOMICAL SPECTROSCOPY › Books 26 July 2017 at 9:52 pm #578380 MARC TRYPSTEENParticipant Many thanks, Jack ! Much appreciated! Indeed, you are absolutely right about the input of time and all efforts needed, but it was worth it. Now we have again more free time to do observations and simultaneously record spectra. 😉 Kind regards, Marc.
