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Old 25-03-2007, 06:46 PM
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richardo (Rich)
Love reflection Nebs !

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Join Date: Aug 2006
Location: Streaky Bay
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ngc 6188 Ha R/Hagb

Hi all again,
like I said, was making the most of the clear night after the moon nicked off.
Added some colour to my previous Ha version on this object that I collected last night.
The seeing wasn't all that good and same with the transparency.
The combo as seen on the title is, Ha combine with the red channel and then recombined to make the rgb then layered ha as luminance in CS2.
Seeing was a bit soft so cranked up the sharpening a bit.
http://www.baytop-observatory.com

If you viewed my Ngc5128 image from my front page, don't forget to refresh it to get this latest image... (L/H thumb...)

All the best and hope you've been getting out.

Cheers
Rich
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Old 26-03-2007, 01:35 PM
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Garyh
Amongst the stars

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Thats one very nice image there Rich, I really love the star colors in it and that tiny reflective neb in the middle adds to all that emission and dark neb..makes me feel like I am right amongst it al!!
Cheers
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Old 26-03-2007, 05:26 PM
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richardo (Rich)
Love reflection Nebs !

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Quote:
Originally Posted by Garyh View Post
Thats one very nice image there Rich, I really love the star colors in it and that tiny reflective neb in the middle adds to all that emission and dark neb..makes me feel like I am right amongst it al!!
Cheers
Thanks Gaz !!
I was battling getting a more "conventional" looking image, but blending the Ha with the red channel you need to allow enough red light through but not compromise the Ha. Too much Ha, things look dead and stars are too small, too little and you loose all that lovely contrast. Never done this before, generally blended with Lum channel.... I learn't a bit.

This was a hard object to get balanced... half of it was dark neb, the other half emission with a splattering of reflection plus an open cluster and also trying to get enough contrast to warrant taking the Ha...
Man, only thing missing was a glob and a galaxy, then I would have had a hamburger with the lot(with beetroot )

I'm not happy with my MPCC spacing at the mo, I just recently bought a 15mm 'T' thread male-female to do a better job than before and had to pack the male end to get the thread to clear my filter wheel.... so a bit long. I've just chopped off a small section and am going to see how well things go tonight since it's clear.
Other than that, things are going ok. Well, soon should have a larger secondary to remove my 5th spike and then I'll be able to tackle objects with super bright stars....

Thanks for taking a peek and your comments, always appreciated.

All the best
Rich
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