Sun in HAlpha With Lunt LS100THa Uploaded 11/27/15 Daily Report For Friday, November 27
Images below are 1024 wide and non clickable
Only occasionally does such a large prominence appear on the suns limb, and this time is especially nice because the suns disk is so bland right now, as we approach solar minimum. Seeing was really bad, the shaking trembling images were difficult to get a good focus on. The wind from the last storm front yesterday is to blame. Also, it was in the 20s out when I started imaging - and everything was coated with a hard hairy frost! As I rolled the observatory roof back, I could hear the wheels crunching the frozen ice crystals.
Lets start with the full disk with proms in the background to get a good feel for the size of these two big proms. This image was taken with a .5x focal reducer on the nose piece of the camera to fit the entire disk in the field:
Below - Some of the disk features, which are called "Active Regions" with the 3x Klee Barlow. Seeing is apparent!
Now with the same setup, we increase the exposure time to bring up the proms on the limb. (gamma is now 150). I block off the disk which is burned out pure white - and a big distraction for seeing the delicate proms:
Thanks for looking - maybe better seeing tomorrow!
