Friday, 27 October 2017

AR12685 & AR12686 in Calcium Light - 27th October

A quick close up this morning of this pair of decaying active regions, now on their 3rd rotation of our star, not much other than a couple of dead spots and relic plage regions are all that are left now.  Pleased this image came out at all as was imaging with the 40mm scope somewhere up around 800mm focal length with the home brew CaK filter and PGR CH3 on an unguided camera tripod, quickly grabbing some frames to stack as the image raced across the field of view!