Sunday, 9 November 2014

CaK Full Disk & Lift Off Prom - 9th November

I was pleasantly surprised to see how bright todays lift off prom was in CaK light.  The seeing was not the best and only allowed me to use 560mm focal length with the 40mm scope, homebrew CaK filter and DMK31 camera, however at these shorter wavelengths the prom stood out better than in Ha.