June 10, 1982

 

 

A complex sunspot group, designated as Hale Region 18405 appeared at the E-limb on June 2. During its transit through the disk, it produced a number of small and moderate flares. Here, the region, south of the main group, exhibited a number of dark arcades. A 2b two-ribbon flare occured at 0647 UT towards south-east direction of HR 18405. Very densely packed post-flare loops could be seen at 0809 UT joining the two bright flare ribbons.