David Boyd Profile Topics Started Replies Created Engagements Favourites Search topics: Topics Engaged In Viewing 20 topics - 61 through 80 (of 89 total) ← 1 2 3 4 5 → Topic Voices Posts Last Post Learning to measure eqw of spectral lines Started by: Dr Andrew Smith in: Spectroscopy 5 10 6 years, 4 months ago Dr Andrew Smith Holst’s The Planets plus observing opportunity Started by: David Boyd in: General Discussion 1 1 6 years, 6 months ago David Boyd AX Per in outburst Started by: David Boyd in: Spectroscopy 2 2 6 years, 6 months ago Gary Poyner A cautionary tale Started by: David Boyd in: Spectroscopy 4 12 6 years, 6 months ago Robin Leadbeater A couple of symbiotics from earlier in the week Started by: Tony Rodda in: Spectroscopy 3 5 6 years, 7 months ago David Boyd Keeler’s seminal paper on the spectroscopic observation of nebulae Started by: Paul Luckas in: History 4 4 6 years, 9 months ago David Boyd Measuring radial velocity of planetary nebulae with Alpy? Started by: Paul Luckas in: Spectroscopy 4 12 6 years, 9 months ago Paul Luckas NSV 11988 Started by: David Boyd in: Spectroscopy 3 4 6 years, 10 months ago Gary Poyner Our 100th BAA Member’s Page Started by: Jeremy Shears in: Website News and Help 5 9 7 years ago MARC TRYPSTEEN AG Dra Started by: Tony Rodda in: Spectroscopy 3 9 7 years ago Tony Rodda Relative Flux Calibration 1 2 Started by: john simpson in: Spectroscopy 7 27 7 years, 1 month ago Paul Luckas NGC 2903 Started by: Alun Halsey in: Spectroscopy 4 20 7 years, 2 months ago Alun Halsey Varying response profiles Started by: David Boyd in: Spectroscopy 3 9 7 years, 2 months ago David Boyd Help with ISIS Started by: john simpson in: Spectroscopy 5 16 7 years, 3 months ago David Boyd Observing stats – how was 2016 for you? Started by: Jeremy Shears in: General Discussion 6 6 7 years, 3 months ago Denis Buczynski Some symbiotics from last night! Started by: Steve Cuthbert in: Spectroscopy 3 5 7 years, 4 months ago David Boyd I’m doing something wrong Started by: Mr Allan Brittan in: Spectroscopy 6 14 7 years, 4 months ago Mr Allan Brittan Focal reducers for Alpy! Started by: Steve Cuthbert in: Spectroscopy 7 13 7 years, 5 months ago Kevin Gurney Imaging camera temperature ? Started by: David Salmon in: Spectroscopy 4 4 7 years, 6 months ago David Boyd spectrum of sn2016fnr discovered by Ron Arbour Started by: Robin Leadbeater in: Spectroscopy 5 8 7 years, 7 months ago Robin Leadbeater Viewing 20 topics - 61 through 80 (of 89 total) ← 1 2 3 4 5 →