Saturday 6 July 2019

Northern Filament 3rd July

This small filament near the solar limb has significance as it sits aloft the magnetic boundary that marks the position of the sub surface solar jet stream that is associated with cycle 25 activity.  Taken with the Coronado SM90 double stacked with a Daystar Quark to increase contrast by reducing continuum leakage in the Ha wing lines, the FLIR GH3 ICX916M camera was used.