spectrographs used › Forums › Spectroscopy › dwarf nova confirmed using ALPY 600 spectrographs › spectrographs used 8 June 2017 at 7:56 pm #578288 Robin LeadbeaterParticipant A small correction:- Umberto used an ALPY 600 but Paolo used a LHIRES with 150l/mm grating giving a similar resolution. Robin
