Sunday 19 July 2015

AR12386 & Departing Active Regions in CaK - 18th July

This region of our star was looking quite frothy in CaK wavelengths on Saturday, with the ED60 at 1900mm focal length with the PGR Blackfly IMX249 and the homebrew CaK filter.  
Posted by BrierleyHillSolar at Sunday, July 19, 2015