Quote:
Originally Posted by Merlin66
Do the same test with the Genesis....
You should get "perfect" disks for comparison...
That way you can eliminate the seeing artifacts and be able to get a better analysis.
A Rochi grating should also show the over/ under correction.
The Roddier freeware software can also be used to estimate the accuracy of the optics based on webcam images.
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Thanks Merlin66 for that!
Downloaded Winroddier (was fun trying to find it) but it is all in french and you can only bring in fit files. Might need some help with this one!
But looks like a decent bit of freeware to have!
Here is the link if anyone else is interested..
http://www.astrosurf.com/tests/visuel/visuel.htm
Also that formula you gave, would that give you a certain amount of overcorrection? The further away the artifical star the better as accuracy?
Thanks Gazz, but it`s nice to know exactly how good one`s system is!
Still no harm in improving the scope! so I can push it even further..
Might redo this to get a better result and stack a few hundred to help smooth out the turbulence.
cheers Gary