Light leak? Internal reflection?

Don Parkes

I'm struggling to figure out what's causing the streaks in the upper right. Shouldn't be any bright stars/planets outside of the frame and there wasn't any moon. Any thoughts?

Thanks,

Don

BlockHead

But there are bright stars.... This is a very common occurrence. If you rotate your camera you may find it changes the effect. Off-axis rays of light can scatter off of surfaces near the edge of the chip and filters...and all kinds of things.

-the Blockhead

Don Parkes

Thanks Adam. I guess that's good news/bad news. :) At least it wasn't walking noise like my last image when I was set to dither every 20 frames!