Clouds interrupted my first animation and then the skies cleared again so I caught 1 3/4 hour of the activity of the prom on the western limb. I also captured this with my ASI174 to see if I saw the same darkening of the image as time went on as I did yesterday with the Saturn-M on the animation I did on AR4130. No darkening at all and the poor chip on the 174 was at 58.3C by the time I finished but no issues with the images collected. I sent a video to Player One of that animation that showed the rapid change in lighting to see if they had any thoughts. The full disk was still taken with the Saturn-M so it works fine, just not sure what is going on when over time the image typically would brighten either due to the sun rising higher or the etalon starting to go off band. Anyway, nice activity in this prom. Image was rotated 90 degrees CCW for viewing. Oh, that's AR4122 bubbling up to the left of the prom!
Full Disk
Animation
Link to Astrobin
