This is a averaged stack of 7 2-minute images.
The star on the right is Merope, the one on the left
is Alcyone. No dark or flat frames have been applied
(thus the vertical bright trails of hot pixels).

The circular reflections around these two bright stars are
from the filter, and not that surprising. What puzzles me
are the lines radiating from the lower left of the image.
Though the Pleiades cluster is streaked with wisps of blue
reflection nebula, there does not seem to be anything "real"
that corresponds to these streaks in the image. I found
similar rays (though much dimmer) in the image of M 78 in
this same gallery, though at a different angle on the image
(cutting across the upper left corner). It would seem that
I'm getting a reflection somewhere in the system.