Re: M27 with DSI

Eric,
The stars are nice and round so the tracking was good. Looks like maybe some hot pixels are did you not take dark frames?

Hello Floyd,
I am not sure about the hot pixels. There is significant noise due to lack of exposure. I did take dark frames and hot pixels were not prevalent in the raw exposures, just lots of stars and noise. Are there any "pixels" in particular that you think are hot?

EDIT: I thought that I should also add I used a clipping algorithm often used for cosmic rays. Since the raw images did not line up perfectly the hot pixels that were there got moved around and should have been clipped with statistics from 13 images.
Eric