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M51 with C14 test image

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Author Topic: M51 with C14 test image  (Read 549 times)
Carl O Beirnes
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« on: April 27, 2010, 01:44:13 am »

Hi all,

I had a chance to get out imaging for first time in a long time. So I got to test the AP1200 mount properly and here is the result of 60 x 2min exposures unguided with C14@3910mm focal length binning was 2x2 camera was Atik 4meg @-20deg.
This was my first time imaging at such a high focal length getting the focus right was a challenge the image was processed in images plus and Photoshop CS3 Darks was  30 x 2mins flats was 35000adu

http://www.webtreatz.com/gallery/displayimage.php?pos=-87
Please click on image to enlarge

Carl.
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Carl O'Beirnes,
Balbriggan Observatory (MPC#J09)
Co Dublin,
Ireland
http://www.webtreatz.com

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markt
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« Reply #1 on: April 27, 2010, 07:27:33 am »

Fantastic shot Carl!  Shocked  Cool  Grin
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Carl O Beirnes
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« Reply #2 on: April 27, 2010, 10:23:58 am »

Thanks lads,

Dennis it looks like some dust the the flats did not take care off I''ll have to redo my flats.

Thanks for the comments.

Carl
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Carl O'Beirnes,
Balbriggan Observatory (MPC#J09)
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brianb
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« Reply #3 on: April 28, 2010, 09:08:38 am »

Superb imaging Carl! Controlling a scope for long exposures at 4 metres focal length isn't easy ...

Have you compared the results of using a focal reducer with binning? I'm guessing the results would be rather similar but just wondered if you'd tried the experiment.
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rjgjr
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« Reply #4 on: April 28, 2010, 03:39:59 pm »

Beautiful image Carl, congratulations on a successful test run!
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Carl O Beirnes
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« Reply #5 on: May 01, 2010, 11:44:53 pm »

Thanks for the comments everyone much appreciated.

Carl
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Carl O'Beirnes,
Balbriggan Observatory (MPC#J09)
Co Dublin,
Ireland
http://www.webtreatz.com
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« Reply #6 on: May 02, 2010, 06:55:17 pm »

Another cracker from you Carl - top quality image with amazing detail and structure within the spiral arms. A blow up of that would look great on any Observatory wall!.  Smiley

Keep them coming...
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