Thursday, 17 March 2016

CaK Full Disk 17th March

The sun was low and the transparency poor at 5pm this afternoon meaning I really had to lift the gain on the PGR Blackfly camera, but this disk came out ok.  AR12524 that has appeared on the north eastern limb is a real monster of a spot, and weather permitting should be very photogenic in the days ahead.  Taken with the homebrew CaK filter and the 40mm scope at 700mm focal length.