This picture is the sum of three 10s and three 5s exposures without
filters.
It's 64×65 arcminutes and it was taken at 5:45 UT.
This picture is a detail of the previous one. The field size is now
35×46 arcminutes.There is a bright shape structure very visible. It can
be seen on the March 20 pictures too. It could be unreal, just saturation.