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Narrowband Tulip Nebula Closeup

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#1 astrovienna

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Posted 04 August 2014 - 05:23 PM

A while back folks in my club asked me how long I spend processing an image, and the answer is:  until I shout "ARGHHH!  That's as good as it's getting!"  I've been processing this one for a month, and I've hit that point.  This image had terrible gradients and background patterns that took me forever to deal with, and they're still hardly perfect.  This is Hubble palette, modified with HLVG for color.  I didn't use the normal selective color mods in PS, since I decided I liked the HLVG version better than I could manualy dig out with those tools.  This uses Ha for luminance.  I've never used that before because it usually loses detail, but here it seemed to lose nothing, and was quite a bit more smooth, and made the blue stand out better. 

 

CPC1100 and SXVR-H694, about 18 hours with Astrodon 5nm Ha/SII and 3nm OIII filters.  Full details are with the image.

 

http://www.pbase.com...image/156862666

 

Kevin

 

PS - Love CN 3.0 so far.  The new search tool seems a bit more useful, though I don't think it's searching far back in time.  I'm pretty sure there have been more than two Tulip images here in the last three years.  :)

156862666.19LODpDb.jpg


Edited by astrovienna, 04 August 2014 - 08:09 PM.

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#2 torsinadoc

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Posted 04 August 2014 - 06:06 PM

After seeing images like these, I cant wait  to upgrade to a CCD this fall! Nice job



#3 David Pavlich

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Posted 04 August 2014 - 06:55 PM

Good stuff, Kevin!

 

David



#4 kfir Simon

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Posted 05 August 2014 - 04:00 AM

WOW WOW WOW

 

I like your details!

 

Kfir



#5 astrovienna

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Posted 05 August 2014 - 04:32 PM

Thanks Kfir, David and Torsinadoc.  I just noticed what looks like an odd linear shadow running almost vertically through the blue nebulosity.  It shows in other images I've seen, so it must be real, but I wonder what causes that?  A dust cloud shadow from a star buried in the nebula?

 

Kevin



#6 rigel123

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Posted 05 August 2014 - 09:27 PM

Really nice details in that one Kevin, and I like your colors!



#7 David Rosenthal

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Posted 06 August 2014 - 09:28 AM

That's fantastic !!!!



#8 blueman

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Posted 06 August 2014 - 01:23 PM

This is a very nice rendering of this not too easy object.

Blueman



#9 Orion58

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Posted 06 August 2014 - 05:35 PM

Well done Kevin!


Edited by Orion58, 06 August 2014 - 05:36 PM.


#10 Bill Snyder

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Posted 07 August 2014 - 04:28 PM

Nice image of the Tulip Kevin! That's about the same way I know when I'm done processing an image too:-)

 

Bill



#11 astrovienna

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Posted 09 August 2014 - 09:36 AM

Bill, Bruce, Floyd, David and Warren, thanks for all the nice comments.  This was another one where the processing was a pain, but I learned some new tricks that should help in the future.

 

Kevin








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