The Dutch Observatory

November 21, 2015 on 3:21 pm | In Sun | Comments Off

The clouds were on their way, but I could just complete a session between the Sun rising above the trees and the arrival of the clouds.  Seeing was not good 4/10 and the Sun at an altitude of 25 degrees, but I got full disk images in the three wavelengths as well as a close up of the regions in 540nm filtered light.  3 C-class flares in the last two days from 2 regions.  Today 3 active regions totaling 150 millionths and 22 Sun spots, a few nice filaments, and some nice proms at the western limb.