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Old 29-06-2022, 03:06 PM
Stephane
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The Cat's Paw

Hi all,

I finally got 10 hours on the Cat's Paw nebula with my new ZWO ASI2600mc pro. Unfortunately I didn't get the spacing quite right with the coma corrector on the first few hours, so there is some coma in the corners, but hopefully that won't be such an issue moving forward.

Please feel free to comment and offer suggestions.

Bigger version here.

Clear skies,
Stéphane


Integration: 10h
Filter: L-Extreme
Calibration: 50 flats & 50 bias.
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Old 29-06-2022, 04:27 PM
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floyd_2 (Dean)
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Superb job as always mate - great detail. How are you finding the L-Extreme?
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Old 29-06-2022, 04:46 PM
Startrek (Martin)
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Stephane,
That’s a fine image of the Cats Paw
It’s not any easy target but you have mitigated the noise floor quite well will plenty of good data and produced some nice subtle detail. Colour is excellent too
Well done !!
PS: Can I suggest you eventually get yourself a TS Optics GPU coma corrector ( when you can afford it ) you’ll never look back

Cheers
Martin
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Old 29-06-2022, 05:38 PM
Dave882 (David)
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Beaut image mate! Well done!!
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Old 29-06-2022, 07:04 PM
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AstroViking (Steve)
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What Martin said - excellent colour and detail there.

Cheers,
V
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Old 30-06-2022, 09:14 AM
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strongmanmike (Michael)
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Some good detail in there, perhaps just a tad orange..? but that's a purr-dy good pussy foot Stephane

Mike
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Old 30-06-2022, 01:47 PM
Stephane
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Quote:
Originally Posted by floyd_2 View Post
Superb job as always mate - great detail. How are you finding the L-Extreme?
Thanks Dean, I love the filter. It cuts through light pollution quite well and brings out the hydrogen and oxygen nicely. (Not much oxygen in this image though)

Quote:
Originally Posted by Startrek View Post
Stephane,
That’s a fine image of the Cats Paw
It’s not any easy target but you have mitigated the noise floor quite well will plenty of good data and produced some nice subtle detail. Colour is excellent too
Well done !!
PS: Can I suggest you eventually get yourself a TS Optics GPU coma corrector ( when you can afford it ) you’ll never look back

Cheers
Martin
Thanks Martin. It took me a few processing attempts to get the image where I wanted it. I think I will eventually buy the TS Optics GPU CC, but might have to wait a bit. I need to go easy on the spending for a while!

Quote:
Originally Posted by Dave882 View Post
Beaut image mate! Well done!!
Thanks Dave!

Quote:
Originally Posted by AstroViking View Post
What Martin said - excellent colour and detail there.

Cheers,
V
Thanks Steve!

Quote:
Originally Posted by strongmanmike View Post
Some good detail in there, perhaps just a tad orange..? but that's a purr-dy good pussy foot Stephane

Mike
Thanks Michael. Funny you mention about the orange, I thought the same and wasn’t quite sure how to bring it to red without messing up my back background colour. I thought of applying a colour mask or even a plain old lightness mask, but decided in the end to keep as is. Any suggestions?
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Old 30-06-2022, 03:35 PM
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strongmanmike (Michael)
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Quote:
Originally Posted by Stephane View Post
Thanks Michael. Funny you mention about the orange, I thought the same and wasn’t quite sure how to bring it to red without messing up my back background colour. I thought of applying a colour mask or even a plain old lightness mask, but decided in the end to keep as is. Any suggestions?
Looking at it again, I think the colour variation within the Cats Paw is pretty subtle and while there certainly is some, there is also a lot of reddening intervening dust between us and it too, soooo, probably somewhere between a burnt orangy-red and magenta is the likely reality .. so I think it is largely semantics..but it is clearly not a nebula to image if you are after wildly differing colour hues

Mike
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Old 30-06-2022, 05:34 PM
Addos (Adam)
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great job!
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Old 30-06-2022, 08:50 PM
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Nikolas (Nik)
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Lovely clear image mate very nice
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