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Old 16-05-2013, 12:56 PM
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SkyViking (Rolf)
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Join Date: Aug 2009
Location: Waitakere Ranges, New Zealand
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Quote:
Originally Posted by sjastro View Post
Here it is Rolf.
http://members.iinet.net.au/~sjastro/CentUVlum.jpg

As you can see it requires far more integration time than the ten hours spent on the object.

Of course it throws a spanner into the works with my reply to Bob when I suggested the yellow regions were due to less UV radiation when clearly the L image shows otherwise.

It supports my theory that combining monochrome images to form colour is more voodoo than science.

I'll try merging the UV data with existing B data to see if I can come up with something more realistic.



Thanks Larry.

Regards

Steven
Thank you Steven, that is one interesting looking frame, very cool.
It actually seems to confirm my result from a while back where I tried to create a synthetic UV image for the Carina nebula, by subtracting L and NIR from a Clear frame. The results were pathetic to say the least and I just discarded it as unworkable. But based on your results I think it might have worked, the S/N was just so low that I thought it wasn't right.
I might give it a try again, given that I don't have a UV filter.
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