not in Ha › Forums › Spectroscopy › Anomolous absorption line? › not in Ha 27 February 2021 at 1:41 pm #583898 Kevin GurneyParticipant Well, it wasn’t in the Ha I took immediatley after… But good idea to try small shift next time (which might be a while as I have switched to Alpy for a bit 🙂 Cheers Kevin
