Tuesday, 5 July 2016

Western Plage - 4th July

On a quiet sun in CaK light there is still plage visible, these are whiter frothy magnetically more active areas of plasma on the chromosphere of the sun.  Here a small area passes towards the suns western limb.  Taken with the ED80 at 60mm with a barlow combination to get to around 1500mm focal length using the homebrew CaK filter and the PGR Chameleon 3 USB3 camera.