Quote:
Originally Posted by Babalyon 5
Honestly, guys, thanks for your help, but you are all missing the point or I wasn't clear enough! Even when I just bring up the image on the screen in a live view, there is a distinct elongation of the stars on the screen. Whether that be a 1 second view or 2miute view, I see that they are elongated, to the point that they can seem as a dash not a dot.
And yes, I have a Trapezium in my polar scope that is next to the SCP to line up for initial setup. I then drift my scope via every drift alignment document on the web(and they all say the same thing), including the one/s here. I then mark and lock everything I can into place and frequently recheck polar alignment visually and drift as I have to pull it down and set it up every time(RoR Observatory coming soon)
I frequently check the backlash in the drive train and recalibrate the motors and train the drives, but this has nothing to do with what I see on my screen. If the stars were round on my screen and mis-shapen in the image, then I would think of other things.
Thanks.  |
If the image is elongated even with very short exposures then the problem is the optics. Either the collimation is out or terrible coma.