Quote:
Originally Posted by Joshua Bunn
Could you post a single sub for us to look at?
Polar alignment - polar misalignment will show up as field rotation around your guide star, was this the case, is your guide star round, and is there rotation about it?
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Here's a single sub unedited - 180 sec
http://www.astrobin.com/42478/
And here's 20 subs stacked- 60min, (Alignment method: Translation (no rotation) in Nebulosity) - It shows some field rotation.
http://www.astrobin.com/42490/
Here's the final result edited:
http://www.flickr.com/photos/astro-tanja/8746756299/in/photostream/
I also took a screen cap of what my PHD was doing during guiding: