Sunday 2 October 2016

CaK Full Disk 2nd October

With these wide angle views of our star, for me things were more interesting in CaK wavelengths, with the bright white plage indicating relic areas of activity, either emerging or decaying, more likely the latter.  Taken with the 40mm ota at 500mm focal length with the home made CaK filter and the PGR Chameleon 3 camera.  There are hints of todays proms at 3 o'clock visible on the edge of the disk.