Saturday, 27 May 2017

Swirling Plasma - 25th May

The seeing was behaving itself a bit on thursday morning with the HaT and I was pleased to get some nice images with the 203mm scope.  These regions of pampas grass plage and plasma are all that remains of the groups of active regions from a few rotations ago now, and at this scale there is still plenty going on with them.  The Baader Solar Telecompressor was used to give a 0.75x reduction factor giving an effective focal length of roughly 4250mm.  The camera was the PGR Chameleon 3 using 2x2 binning to give 6.9um effective pixels and also a much shorter exposure time in an attempt to freeze the seeing, which it seems to have done.