Saturday, 23 June 2018

AR12713 in Ha - 22nd June

I also had a second adaptor plate made up so that I could use the 50mm etalon pair on my other refractors.  Here on the Tal100 to give about a f25 image scale which would be better suited to a 5.86um imx174 chipped camera rather than the 3.45um pixels of the PGR Chameleon 3 that was used.  There was plenty to see as this active region heads over the limb and as we head to solar minimum.