Topic Tag: Alpy 200 Search for: › Forums › Topic Tag: Alpy 200 Viewing topic 1 (of 1 total) Topic Voices Posts Last Post Alpy 200, what minimum size scope for supernova ID? Started by: John Coffin in: Spectroscopy 2 3 3 months, 2 weeks ago John Coffin Viewing topic 1 (of 1 total)