Tuesday, 22 April 2014

AR12032 CaK

More really fine details are visible in this image of relatively quiet active region AR12032, if you look carefully below the penumbra of the main spot you will see several bright arches of plasma looping from the solar surface.  This is something I have not seen in CaK wavelengths before.  This shot was taken with the 80mm scope at f20 with the DMK31 camera.