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  #1  
Old 15-05-2025, 03:15 PM
TrevorW
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IC4628 The Prawn Nebula (Hubble effect)

IC 4628, the Prawn Nebula, is a large emission nebula in the constellation Scorpius. It lies around 6,000 light-years from Earth.


OSC camera QHy268c processed in SIRIL
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Last edited by TrevorW; 15-05-2025 at 05:15 PM.
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  #2  
Old 23-05-2025, 02:53 PM
Startrek (Martin)
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I missed this one Trev, nice Prawn from your OSC with only Ha and Oiii data. The Prawn is not easy target using OSC as you miss out on the Sii signal which does make a difference.
My preference is somewhere between the two images , too much colour saturation always bleeds coloured halos around your stars. Siril may have a tool to morph that halo colour into the surrounding nebulosity ( Startools does have such a tool )

Well done !!

Using Siril to split your dualband channels and process into a HST palette has given your images much more depth and life !!

Keep it going ….,

Clear Skies
Martin
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  #3  
Old 27-05-2025, 12:17 PM
TrevorW
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Thanks Martin
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  #4  
Old 28-05-2025, 07:10 PM
Leo.G (Leo)
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That's so nice and I want a OSC with larger pixel sizes for my longer focal length scopes.
Everyone says mono is better but that's great if you have the conditions/set-up/time and opportunity but where I live just west of the blue mountains things disappear fast. Your OSC images are always beautiful.


I have a Player One with the older IMX178 (superseded by a later better sensor in the newer Neptune I believe) but it's small pixel size isn't great for longer focal length scopes (RC8 carbon, f8 152mm refractor (achromat sadly)). This from my former research when I was going to drop a few grand on a mono cooled camera.
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  #5  
Old 28-05-2025, 07:51 PM
TrevorW
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Thanks Leo I recommend QHY cameras over ZWO
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  #6  
Old 28-05-2025, 08:21 PM
Orion31 (Christiaan)
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Prawn

Nice picture Trev. I really like the colour. It really is breathtaking.
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  #7  
Old 28-05-2025, 11:52 PM
Leo.G (Leo)
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The little Player one is not bad.
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  #8  
Old 29-05-2025, 09:47 AM
TrevorW
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Thanks Christiaan
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