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Old 16-04-2025, 11:49 AM
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joshman (Josh)
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Carina Nebula - 4 Panel Mosaic

As a follow up to my 4 Panel Carina Nebula Mosaic in HOO, I present the same, but now with S2!

To blend in the S2, I re-stacked and re-processed this from the ground up; I wanted to approach this with a completely fresh outlook.

Every panel in this mosaic has 4 hours each of SHO, and 15 mintutes each of RGB, for a total of 51 hours for the entire mosaic. Stacked and processed entirely in Pixinsight.


Click Here to see the image and acquisition details on Astrobin, and


Don't forget to have a good look around the full size image.


Thanks for looking and Clear Skies!
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Old 16-04-2025, 04:42 PM
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That is a great image, thanks for sharing
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Old 16-04-2025, 09:13 PM
JohnA (John)
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beautiful
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Old 17-04-2025, 11:44 AM
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beautiful
Thanks John!


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Originally Posted by TrevorW View Post
That is a great image, thanks for sharing

Thanks Trevor!
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Old 17-04-2025, 12:49 PM
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strongmanmike (Michael)
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Lovely, what a nebula

Mike
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Old 17-04-2025, 02:00 PM
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A sensational image. Looks fabulous when you go in on a zoom.

Greg.
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Old 18-04-2025, 11:14 AM
Orion31 (Christiaan)
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Gee Whiz, A lot of work went into that photo. It sure paid off though. Very Nice picture!
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Old 19-04-2025, 09:18 AM
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Lovely, what a nebula

Mike
Thanks Mike!, we're definitely treated to some amazing nebulas down here!




Quote:
Originally Posted by gregbradley View Post
A sensational image. Looks fabulous when you go in on a zoom.

Greg.
Thanks Greg! I'm glad you enjoyed the view!




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Originally Posted by Orion31 View Post
Gee Whiz, A lot of work went into that photo. It sure paid off though. Very Nice picture!
Thanks Christiaan! That hardest part is assembling the Mosaic in PixInsight!
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Old 19-04-2025, 11:59 AM
Leo.G (Leo)
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Stunning Josh, I see you've put a LOT of time into getting the data and processing.
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Old 19-04-2025, 12:01 PM
Dave882 (David)
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Wow that’s beautiful mate. Fantastic detail and dynamic range. Well worth the effort. Congrats
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  #11  
Old 23-04-2025, 10:01 AM
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Stunning Josh, I see you've put a LOT of time into getting the data and processing.
Thanks Leo! I really enjoyed the process on putting this together, even if trying to capture this data with all the terrible weather lately hasn't been easy.


Quote:
Originally Posted by Dave882
Wow that’s beautiful mate. Fantastic detail and dynamic range. Well worth the effort. Congrats
Thanks Dave! I always find trying to balance the dynamic range to be really difficult, especially with targets like this where there is a wealth of detail hidden in the dark area that you want to preserve.
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Old 23-04-2025, 03:24 PM
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That's a really great image!

I'm kind of wondering how you went about adding the SII? I took a look at the original HOO version and notice some deep red...most of which now looks rather orange, which is fine! But, then I wonder how this might have turned out if you tried getting the SII regions to look more golden (and kept more red)? Adam Block recently posted a method that I think looks very interesting...and, it starts with an HOO image.

I'm not being critical, just curious and thinking about how I might have tried to deal with your spectacular data. It's a wonderful photo as is, that's for certain!

Peter
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Old 29-04-2025, 08:54 AM
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Originally Posted by PRejto View Post
That's a really great image!

I'm kind of wondering how you went about adding the SII? I took a look at the original HOO version and notice some deep red...most of which now looks rather orange, which is fine! But, then I wonder how this might have turned out if you tried getting the SII regions to look more golden (and kept more red)? Adam Block recently posted a method that I think looks very interesting...and, it starts with an HOO image.

I'm not being critical, just curious and thinking about how I might have tried to deal with your spectacular data. It's a wonderful photo as is, that's for certain!

Peter

Hi Peter, Sorry that it's taken so long to respond!


I actually used the method that Adam Block recently posted for mixing the SII data in. I started by creating a HOO image, then coloured the SII image using Bill Blanshans NBColorMapper script, then blended it with his ImageBlend script.


So all the orange/gold you see in this image is the SII data.


Some targets respond really well to this method of making a HOO+S image, others not so much. The SII response in this region is quite strong, and my processing may have it a little overpowering and overtaking the Ha signal, but there is a massive overlap in both.


If I find the time, I might try revising the data and seeing what other results i can produce.
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  #14  
Old 29-04-2025, 12:06 PM
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PRejto (Peter)
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Hi Josh,

Thanks for yur reply! I have noty imaged this object yet so what you say makes sense. I guess the "trick" would be to retain some distinction between the two by highlighting the areas in each colour that do not overlap. Maybe that is impossible with this target.

CS,
Peter
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  #15  
Old 29-04-2025, 12:18 PM
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Originally Posted by PRejto View Post
Hi Josh,

Thanks for yur reply! I have noty imaged this object yet so what you say makes sense. I guess the "trick" would be to retain some distinction between the two by highlighting the areas in each colour that do not overlap. Maybe that is impossible with this target.

CS,
Peter

Thank you for the comments. I like where your analysis of the image and my processing is headed, I think I'll make the time to revisit this and see what I can do to "highlight the differences."


Thanks again!
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