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Old 31-10-2011, 02:47 PM
Zincberg (Andrew)
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Zincberg is offline
 
Join Date: Nov 2010
Location: Wyoming, NSW
Posts: 114
need a little help

Hey guys,
On the weekend, I took a stack of pictures at the IISAC using my Nikon D7000, through my B250 astro imager, which was mounted on my NEQ6.
One of my targets/goals was to grab the horsehead.. so, I did around 20 images@ iso 650 for 5m 30sec.
Unfortunately, to my disappointment, I have got home to find they are pretty well all useless. At the time I couldnt see the movement on the screen (and perhaps in my excitement didnt look hard enough for it anyway), but then I had another look, and I dont understand what Im looking at.
If you look at the top left of the image, it looks like there is a fair bit of movement there, same on the top right... but the movement is in a different direction.. again, same with each bottom corner.
I was wondering if anyone could advise what this could be... Im using a baader coma correcter (which I am still not sure is set to the right position), could this be coma? Flexure (is that even a word?) or does it look like movement or something else?

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