john simpson Profile Topics Started Replies Created Engagements Favourites Search topics: Forum Topics Started Viewing 3 topics - 1 through 3 (of 3 total) Topic Voices Posts Last Post V CVn Started by: john simpson in: Variable Stars 1 1 5 months, 3 weeks ago john simpson Relative Flux Calibration 1 2 Started by: john simpson in: Spectroscopy 7 27 8 years, 11 months ago Paul Luckas Help with ISIS Started by: john simpson in: Spectroscopy 5 16 9 years, 1 month ago David Boyd Viewing 3 topics - 1 through 3 (of 3 total)