Mr Jack Martin Profile Topics Started Replies Created Engagements Favourites Search topics: Topics Engaged In Viewing 20 topics - 1 through 20 (of 181 total) 1 2 3 … 8 9 10 → Topic Voices Posts Last Post Shortest day Started by: Mr Jack Martin in: General Discussion 1 1 3 weeks, 4 days ago Mr Jack Martin Betelgeuse 1 2 … 4 5 Started by: Dawson in: General Discussion 23 98 1 month ago Robin Leadbeater National Geographic Started by: Mr Jack Martin in: General Discussion 1 2 1 month, 1 week ago Mr Jack Martin RIP Terry Platt Started by: Dr Paul Leyland in: General Discussion 6 6 2 months, 1 week ago Nick James Safe Solar observing Started by: Mr Jack Martin in: Sun 2 2 2 months, 1 week ago David Arditti Recurrent Nova RS Oph 1 2 3 Started by: Gary Poyner in: Variable Stars 15 44 3 months, 2 weeks ago Jeremy Shears Which diagonal? Started by: Mr Jack Martin in: General Discussion 3 5 4 months ago Mr Jack Martin Sparsholt Winchester Weekend 2025 Started by: Pauline Phillips in: BAA Events and News 5 6 4 months, 2 weeks ago Mr Jack Martin Celestron CGEM mount Started by: Mr Jack Martin in: General Discussion 4 10 5 months, 3 weeks ago Trevor Emmett Which Powertank ? Started by: Mr Jack Martin in: General Discussion 3 5 5 months, 3 weeks ago Mr Jack Martin Life, don’t talk to me about life 1 2 Started by: Dr Paul Leyland in: Venus 14 31 6 months, 1 week ago Jeremy Shears Vulnerable Moon Started by: Mr Jack Martin in: Moon 2 2 7 months, 2 weeks ago Robin Leadbeater Another hi res meteor spectrum Started by: Bill Ward in: Meteors 2 2 7 months, 2 weeks ago Mr Jack Martin Burnham’s Celestial Handbooks Started by: Mr Jack Martin in: For Sale / Wants / Giveaway 2 5 7 months, 2 weeks ago Steve Holmes StarSense NoSense Started by: Mr Jack Martin in: Computing 1 1 7 months, 2 weeks ago Mr Jack Martin Michael Woodman and T Cor Bor Started by: Mr Jack Martin in: History 1 1 8 months ago Mr Jack Martin Vixen Started by: Mr Jack Martin in: General Discussion 4 9 8 months ago Mr Jack Martin Abandoned Observatory found Started by: Mr Jack Martin in: Telescopes 5 7 8 months, 2 weeks ago John Nichol Fed up with cloudy nights try this Started by: Mr Jack Martin in: General Discussion 3 3 8 months, 2 weeks ago Alex Pratt Won’t focus Started by: Mr Jack Martin in: Telescopes 6 10 8 months, 3 weeks ago Dr Paul Leyland Viewing 20 topics - 1 through 20 (of 181 total) 1 2 3 … 8 9 10 →