Dr Paul Leyland Profile Topics Started Replies Created Engagements Favourites Search topics: Topics Engaged In Viewing 20 topics - 321 through 340 (of 445 total) ← 1 2 3 … 16 17 18 … 21 22 23 → Topic Voices Posts Last Post PQ And in very rare outburst 1 2 3 Started by: Jeremy Shears in: Variable Stars 12 43 4 years, 11 months ago Gary Poyner Jet in 3C273 Started by: Dr Paul Leyland in: Deep Sky 3 3 4 years, 11 months ago David Strange To do or not ? Started by: Mr Jack Martin in: Photometry 4 7 4 years, 11 months ago Mr Jack Martin Signal to Noise Ratio (SNR) estimates Started by: Tim Haymes in: Imaging 4 4 4 years, 11 months ago Dr Paul Leyland Using DSLR cameras to measure sky brightness Started by: Dr Paul Leyland in: General Discussion 1 1 4 years, 12 months ago Dr Paul Leyland Website downtime Started by: Dominic Ford in: Website News and Help 2 2 5 years ago Dr Paul Leyland Refocussing meteor cameras Started by: Dominic Ford in: Meteors 6 7 5 years ago Dr Paul Leyland Crew Dragon launch Started by: Steve Knight in: General Discussion 7 12 5 years ago Nick James Help needed for a final time – image Venus and the Moon Started by: Carolyn Kennett in: General Discussion 5 9 5 years ago James Lancashire Negative observations Started by: Dr Paul Leyland in: Variable Stars 3 8 5 years ago Dr Paul Leyland Webinar Applause Started by: Stuart Morris in: BAA Events and News 7 8 5 years ago Stuart Morris Super Nova 2020 hvf in NGC 3643 Started by: Eric Watkins in: Variable Stars 7 7 5 years ago Dr Paul Leyland Why are most of the Moon’s craters circular? Started by: Alan Thomas in: Moon 4 5 5 years, 1 month ago Alan Thomas Solar System and Exoplanets review paper Started by: David Boyd in: Exoplanets 3 3 5 years, 1 month ago Roger Dymock SBIG ST Parallel Port Cameras Started by: Michael O’Connell in: Imaging 5 10 5 years, 1 month ago Michael O’Connell Did you know ! Started by: Mr Jack Martin in: Venus 6 11 5 years, 1 month ago Nick James 4.7 day old Moon – 2020 April 27 Started by: Michael O’Connell in: Moon 4 10 5 years, 1 month ago Alan Thomas SU UMa is unusually quiet currently Started by: Robin Leadbeater in: Variable Stars 2 2 5 years, 1 month ago Dr Paul Leyland software for finding faint asteroid tracks Started by: Robin Leadbeater in: Asteroids 3 10 5 years, 1 month ago Grant Privett Advice on variable star photometry setup Started by: Roy Lemmon in: Variable Stars 5 13 5 years, 1 month ago Dr Paul Leyland Viewing 20 topics - 321 through 340 (of 445 total) ← 1 2 3 … 16 17 18 … 21 22 23 →