Monday, 22 June 2020

Not Active Regions 21st June


Bright patches on the STEREO imagery in the preceding days caused hope among the solar community of more active regions, alas this was not the case and all that rotated was some patches of plage, not really much brighter than the surrounding chromospheric network.  Still, this proved a target for the 100mm Tal at f28 with the newly configured CaK filter and its reduced exposure time.