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cg5
PST
1000D
Sylvania, Ohio 5-24-13

I have found that Solar imaging is much harder than I anticipated. The biggest problem is not being able to do a polar alignment in the day time. I have to select frames where the Sun is similarly positioned in relation to each other to get a decent stack out of Registax. The drifting of the image within the frames results in the semi-circular ring of distortion at the top of the image. Does anyone have any suggestions?

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Comment by Jeffrey P Nunnari on June 21, 2013 at 4:44pm

Thank you, Scott.

Comment by Scott Gauer on June 21, 2013 at 12:02pm

sign up for solarchat.natca.net- solar imagers/ observer's forum and it helped me a lot when I was getting started.

Comment by Jeffrey P Nunnari on May 31, 2013 at 11:07am

Thanks, Brian.

Comment by Brian Clark on May 31, 2013 at 10:46am

I wish I could offer you some advice on the distortion in the image.I have very limited solar experience and that in white light only single shot canon 1100d. PST's are amazing and you gleaned a lot of detail out of that shot. i hope to see more of your solar work. The DSO work is quite nice also.
Be well
Brian Clark

Comment by Jeffrey P Nunnari on May 26, 2013 at 5:19pm

So, actually, after examining the individual subs in close detail, it appears as though the ringed distortion in the upper part of the image is endemic to all the subs and an artifact of over-exposure. I will try shorter exposures next time around and see if that resolves the issue.

Comment by Mark Roberts on May 26, 2013 at 11:29am

if you still get some drift you can drift align it in from there

Comment by Mark Roberts on May 26, 2013 at 11:28am

you can also try to carefully mark the placement of your tripod so you can reposition it in the same place for daytime

Comment by Jeffrey P Nunnari on May 26, 2013 at 11:23am

Unfortunately that is not an option for me. I have to ether set-up at a remote sight or at the end of my driveway due to my lot being home to many tall trees. My rig would be gone by morning unless I baby-sat it all night. Thanks for the comment.

Comment by Mark Roberts on May 26, 2013 at 11:17am

polar align at night and leave your mount set up for the day
Some nice detail none the less

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