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Old 26-03-2011, 07:46 PM
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Eta Carina CDK now with Ha only

What do you image when its a 3/4 super moon?

Eta Carina of course!

A bright object like Eta images quite well through the moon's light.

Planewave CDK17, FLI Proline 16803, Paramount ME.

HaRGB 150 50 30 40.

http://www.pbase.com/gregbradley/image/133430971/large regular size

http://upload.pbase.com/image/133430971 large

the Ha only by itself - 15 x 10ins 1x1 at -35C:

http://upload.pbase.com/image/133449802

Click on "original" under the image if you want to see the largest size.

Greg.

Last edited by gregbradley; 27-03-2011 at 12:18 PM.
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Old 26-03-2011, 10:16 PM
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Greg,

Wonderfully clear image. The dark areas are very pronounced.

Frank
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Old 26-03-2011, 10:44 PM
Hagar (Doug)
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Nice Greg. Something just doesn't look right. Maybe the blue stars.
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Old 27-03-2011, 01:08 AM
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Quote:
Originally Posted by Hagar View Post
Nice Greg. Something just doesn't look right. Maybe the blue stars.
Thanks Dougie. Yes the stars were affected by the Ha blend as luminance. I did a fix up of that and got a far better result. The stars seem fine now. I like this version of it now. The central bulbous nebula and gas stream stand out nicely to me.

Its interesting when you do a multilayered image how easily the stars can get damaged by a step in the process and because they are small it can get missed.

I might take some real short exposures and add in the keyhole section around Eta Carina itself. I can see there is some sort of outer neb caught there but the glare of the star blots out any real detail.

Greg.
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Old 27-03-2011, 01:08 AM
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Originally Posted by telecasterguru View Post
Greg,

Wonderfully clear image. The dark areas are very pronounced.

Frank
Thanks Frank. The repro seems to have gotten an even better result.
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Old 27-03-2011, 08:30 AM
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Lovely colours and tack sharp, Greg. That CDK is surely a lovely scope.
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Old 28-03-2011, 05:55 PM
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Thanks Allan.

Yes the CDK is a keeper.

Greg.


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Lovely colours and tack sharp, Greg. That CDK is surely a lovely scope.
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