Details
Location: From Melbourne inner suburbs (so lots of city lights)
Camera: Canon A80 15s exposure stack of 30 pics using software Rot'n'Stack
Time: 12 May about 7:45 pm
The stacking software has an output of minimum, mean, and maximum images. The dark dotted streak is seen only on the "minimum" image.
Any one have any idea what this could be caused by? I'm guessing a slow moving satellite?