Friday 28 July 2017

CaK Full Disk 28th July

So far this summer i've been really unlucky with solar observing, either the weather has been bad or i've been tied up with work.  This morning there was some brief and unexpected clear skies so I managed a quick full disk in calcium wavelengths.  The sun is very quiet at the moment with no sunspots and only a couple of areas of plage.  Taken with the 40mm scope at 560mm focal length with the home brew CaK filter and the PGR Chameleon 3 camera.