Tuesday, 11 March 2014

CaK Sun 11th march

CaK-full-disk by Mark Townley
CaK-full-disk, a photo by Mark Townley on Flickr.

I managed to image the sun for 3 days in a row today, not bad seeing as I only managed about 3 times in the last 3 months over the winter months. I was a bit later getting back from work today and the sun was only 5 degrees above the horizon when this shot was taken with the 40mm ota at f10 with the DMK31 camera, but I was pleasantly surprised at how the prominences in this CaK image of our star mirrored those visible in the Ha image I took a few minutes before. My homebrew CaK filter is working beyond all my expectations!