Mr Jack Martin Profile Topics Started Replies Created Engagements Favourites Search topics: Forum Topics Started Viewing 20 topics - 1 through 20 (of 105 total) 1 2 3 4 5 6 → Topic Voices Posts Last Post Variable Star meetup Started by: Mr Jack Martin in: Variable Stars 3 4 2 days, 1 hour ago Mr Jack Martin Abandoned Observatory found Started by: Mr Jack Martin in: Telescopes 7 9 3 weeks, 4 days ago Nick James Shortest day Started by: Mr Jack Martin in: General Discussion 1 1 2 months, 2 weeks ago Mr Jack Martin National Geographic Started by: Mr Jack Martin in: General Discussion 1 2 3 months ago Mr Jack Martin Safe Solar observing Started by: Mr Jack Martin in: Sun 2 2 4 months ago David Arditti Which diagonal? Started by: Mr Jack Martin in: General Discussion 3 5 5 months, 3 weeks ago Mr Jack Martin Celestron CGEM mount Started by: Mr Jack Martin in: General Discussion 4 10 7 months, 2 weeks ago Trevor Emmett Which Powertank ? Started by: Mr Jack Martin in: General Discussion 3 5 7 months, 2 weeks ago Mr Jack Martin Vulnerable Moon Started by: Mr Jack Martin in: Moon 2 2 9 months ago Robin Leadbeater Burnham’s Celestial Handbooks Started by: Mr Jack Martin in: For Sale / Wants / Giveaway 2 5 9 months, 1 week ago Steve Holmes StarSense NoSense Started by: Mr Jack Martin in: Computing 1 1 9 months, 1 week ago Mr Jack Martin Michael Woodman and T Cor Bor Started by: Mr Jack Martin in: History 1 1 9 months, 3 weeks ago Mr Jack Martin Vixen Started by: Mr Jack Martin in: General Discussion 4 9 9 months, 3 weeks ago Mr Jack Martin Fed up with cloudy nights try this Started by: Mr Jack Martin in: General Discussion 3 3 10 months, 1 week ago Alex Pratt Won’t focus Started by: Mr Jack Martin in: Telescopes 6 10 10 months, 2 weeks ago Dr Paul Leyland Lat Lon coordinates Started by: Mr Jack Martin in: General Discussion 6 14 11 months, 1 week ago Grant Privett Which diagonal? Started by: Mr Jack Martin in: General Discussion 1 1 11 months, 1 week ago Mr Jack Martin Consider these Started by: Mr Jack Martin in: General Discussion 4 6 11 months, 2 weeks ago Mr Jack Martin Geomagnetic storm predictions Started by: Mr Jack Martin in: Sun 1 1 1 year, 2 months ago Mr Jack Martin Wierd calib flat images Started by: Mr Jack Martin in: Spectroscopy 3 6 1 year, 2 months ago Robin Leadbeater Viewing 20 topics - 1 through 20 (of 105 total) 1 2 3 4 5 6 →