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Old 12-01-2013, 03:15 PM
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peeb61 (Paul)
Always looking up

peeb61 is offline
Join Date: Jan 2007
Location: Wollongong
Posts: 709
Strange M42 artifacts.

HI All,
I was wondering if somebody has come across this strange artifact in an image I took last night of M42.

It is a stack of 5x 10 minutes, 20x 30 seconds and 20x 15 seconds. I am using the QHY8L, the gain and offset are 5 for gain and 30 for offset.

The camera was sitting on -15deg the whole night.

As you can see from the image there are a couple of strange lines running across the image toward the bottom.

Any ideas what may have caused them??

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