May 28, 2018May 30, 2018Sun in H alpha – May 28, 2018 Scroll down to content Some H-alpha activity today, imaged with the 150mm homemade refractor. A nice large prom: And two active regions, one visible only in H-alpha: Share this:TwitterFacebookLike Loading... Related Published by maxpho An amateur...photographer, astronomer, entomologist...just an amateur ;) View all posts by maxpho