Sunday 21 May 2017

CaK Full Disk - 21st May

There was quite a reasonable layer of haze when I took this image, but, it was homogeneous, and so the transparency remained constant while I was image.  The bright group of plage is now on 3 rotations, and with the obvious relic sunspots now decaying, an emerging flux region appeared in the north eastern quadrant, however when the image is viewed full size it is possible to see a bipolar pair of very small sunspots.  Curious that over the past couple of months there has been a rejuvenation in solar activity in this northern jet stream.  Taken with the 40mm scope at ~500mm focal length with the homebrew CaK filter and the PGR Chameleon 3 camera.