Re: Was told this is Drift...
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Hi Sonny,
I try to avoid meridian flips....and if I image through a flip, I label my sub images slightly?differently, and stack them separately.
I can then stitch the two final images together in Photoshop or equivalent, or overlay them.??
To avoid a meridian flip, when the mount, scope, and target permit, I'll start my scope west pointing east but upside down if necessary ....that is counterweights above the scope center.? Then the object is tracked through the meridian, and into the West like sunset.? (Not "to infinity and beyond!" as Buzz would say, but maybe 52 million light years or so. )
Have fun with your wonderful equipment!
Michael
Thanks All!
As far as my stacking, I have very little control over it, that I'm aware of, anyway.
The stacking is a part of the Atik Infinity camera software. The only options I have are to delete a questionable image before the next stacks.
What was odd, and is harder to show, is how this odd edge starts to show, then got more and more pronounced. It didn't change it just kept developing.
In the earlier images it doesn't really show, it just developed like a 5 O'clock shadow. LOL!
My initial thoughts was a misalignment in my imaging train, because it was so square.
I use an Orion ED80T CF as my telescope.
A Manual Filter wheel, and typically a Baader Moon and Sky Glow filter for my area light pollution. (Possible suspect, being in the light path. But the filter is round.)
And then the Atik Infinity, with it's software.
I did a run at the Eagle Nebula, and the same anomaly cropped up.
But in the end, I can easily crop this oddness off the image in Post Processing.
I just had this hair-brained idea to see if I could image through the meridian, and bypass any meridian flip.
Starting off, I had no idea I could go to such an extreme. It just kept going, and the reason I stopped was the telescope was approaching the mount. And it was 03:01 Hrs.
Honestly guys, much of this technical stuff is above my current interest and intellect. It kinda makes me dizzy. LOL! ;^)
But if I can crop away the doo-doo, then do my typical minimal Post Processing, I'm OK with that.
Thank You for your well thought out analytics. I will say, getting into this new realm of imaging is interesting to me.
I can sit there grabbing files at 250 second slices (25, 10 second images) and see this "5 O'clock shadow" develop.
But... it pales in comparison to the detail that builds in the details of the image.
Other friends Post Processing my odd ball imaging method.
But, it's because Scott made the RAEXT and shown the RA flip through after extending the RA. (Sans telescope.) That is the only reason I took this zany path.
And the only reason I got this weird result.
But I do things a bit differently anyway.
Thank You for your inputs!
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SonnyE
(I suggest viewed in full screen)
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Michael Herman