Saturday, 23 June 2018

AR12715 & Filaments - 22nd June

This active region has developed rapidly over the past few days and has had some c class flaring taking place.  Darker filaments around the sunspots show the magnetic field lines well.  Taken with the DS50 etalons on the Tal 100R refractor.  A 1.25x barlow was used along the PGR Chameleon 3 camera to give a effective focal ratio somewhere around f25.