September 6, 2018H-alpha Sun – September 6, 2018 Scroll down to content A solar session, with two fairly large proms dancing on the limb. I could follow their evolution for about 20 minutes before some clouds decided to develop near the Sun… 150mm F/5 refractor, Quark chromosphere, ASI 174MM. Share this:TwitterFacebookLike this:Like Loading... Related Published by maxpho An amateur...photographer, astronomer, entomologist...just an amateur ;) View all posts by maxpho