Last night Lhires111 23 › Forums › Variable Stars › Recurrent Nova RS Oph › Last night Lhires111 23 25 August 2021 at 8:02 am #584627 Mr Jack MartinParticipant Last night Lhires111 23 micron slit 2400 l/mm grating C14 Atik460 10 x 600s. Jack Essex UK