Thursday, 4 July 2019

Ha Full Disk 3rd July

I decided to double stack the SM90 with a LS50 etalon to get a bit more contrast on the solar disk.  This has shown up the plage that is mid disk very well, and also the cycle 25 region S6205.  The filament in the northern polar region is also a cycle 25 feature.  Taken with the GH3 ICX916M camera.