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 1 week, 6 days ago john simpson Relative Flux Calibration 1 2 Started by: john simpson in: Spectroscopy 7 27 8 years, 5 months ago Paul Luckas Help with ISIS Started by: john simpson in: Spectroscopy 5 16 8 years, 8 months ago David Boyd Viewing 3 topics - 1 through 3 (of 3 total)