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Old 12-06-2019, 03:35 PM
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Andy01 (Andy)
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A Lobster's Tale...

Continuing the Seafood Buffet of Nebulous Crustacea on IIS, here we have detail of NGC 6357 from Suburbia, very challenging to process too!

A precision balancing act between rendering nebulous gas & the fine details...

We have some truly bizarre shaped DSO's in the southern Hemisphere.

26x600 Ha 3nm
43x600 O3 3nm
10x600S2 3nm
30x120 ea RG&B

Cataloged as NGC 6357, the Lobster Nebula houses the open star cluster Pismis 24 near its centre, a home to unusually bright and massive stars.
The overall blue glow near the inner star forming region results from the emission of ionised hydrogen gas.

The surrounding nebula, holds a complex tapestry of gas, dark dust, stars still forming, and newly born stars. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity. NGC 6357 spans about 400 light years and lies about 8,000 light years away toward the constellation of the Scorpion. (apod)

Kinda looks like Deep Space 9 too!

Thanks for looking, C&C welcome
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Old 12-06-2019, 03:52 PM
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strongmanmike (Michael)
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Ah the good'ol Lobster....

It's a fabulous area the inner area of NGC6357, like a maelstrom . and you have reflected this nicely. I like your colour palette too, showing some variation in colours to reflect that three filters were used not just two Main negative is, that when viewed at fit-to-screen it looks o-k... but any larger and there are a lot of processing artefacts visible

Overall though, a cool bit of neb

Mike
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Old 12-06-2019, 04:22 PM
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Andy01 (Andy)
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Quote:
Originally Posted by strongmanmike View Post
I like your colour palette too, showing some variation in colours to reflect that three filters were used not just two

Main negative is, that when viewed at fit-to-screen it looks o-k... but any larger and there are a lot of processing artefacts visible

Mike
Cheers Mike - This must be version #249 I think! I even dug one of your's out of your website for comparison when processing the Ha LUM; as I was pleased with my colour palette but as you have seen, when pushing colours that hard, well - something's gotta give!

Seems quite a challenge to get sharpness & detailed nebulosity vs. soft & gaseous - amazed that there was sooooo much going on here in the vortex though
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Old 12-06-2019, 04:44 PM
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codemonkey (Lee)
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Nice work Andy, love the colours and contrast. As Mike says though, full view shows up some artefacts; I'd personally dial it back because of that.
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Old 12-06-2019, 05:02 PM
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Sidonio's gone for the Swedish flag, I take it you've gone mad for the Dutch Royals...
What's next for NB palettes?
Interesting palette, but nicely done
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Old 12-06-2019, 05:41 PM
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Quote:
Originally Posted by codemonkey View Post
Nice work Andy, love the colours and contrast. As Mike says though, full view shows up some artefacts; I'd personally dial it back because of that.
Cheers Lee- maybe, but I’ll have to research some new less destructive techniques first. I like my images bold, and yes, ideally artifact free.
Might check out Adam Block’s PS tutorial set, it’s about $100 US. 😊

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Originally Posted by Peter Ward View Post
Sidonio's gone for the Swedish flag, I take it you've gone mad for the Dutch Royals...
What's next for NB palettes?
Interesting palette, but nicely done
Cheers Peter, I had a Dutch girlfriend once, and it’s cricket World cup season, so maybe
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Old 12-06-2019, 06:17 PM
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Amazing image Andy. The Lobster usually is about THE most boring object out there but you have brought it to life. At the displayed image size the sharpness is superb. High res though is showing some sharpening artifacts. Oh well, no free lunches and all that. Perhaps multi scale deconvolution may've worked here.

Greg.
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Old 12-06-2019, 08:30 PM
Placidus (Mike and Trish)
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That's inspiring, Andy. It looks wonderfully three-dimensional.

Well done.
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Old 13-06-2019, 08:14 AM
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A very tasty Lobster Andy.
Some really great detail and I don't mind the palette at all.

Cheers,
Pete
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Old 13-06-2019, 09:13 AM
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Andy01 (Andy)
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Quote:
Originally Posted by gregbradley View Post
Amazing image Andy. The Lobster usually is about THE most boring object out there but you have brought it to life. At the displayed image size the sharpness is superb. High res though is showing some sharpening artifacts. Oh well, no free lunches and all that. Perhaps multi scale deconvolution may've worked here.

Greg.
Hi Greg, Thanks for that - didn't thing the lobster was that boring! Monochromatic yes, but it has so many interesting skeletal pockets & swirls

What's multi scale deconvolution? sounds like something Data would use on the Enterprise!

Quote:
Originally Posted by Placidus View Post
That's inspiring, Andy. It looks wonderfully three-dimensional.

Well done.
Cheers M& T - I had hoped the 3D thing would show - had to work pretty hard to get it though

Quote:
Originally Posted by Retrograde View Post
A very tasty Lobster Andy.
Some really great detail and I don't mind the palette at all.

Cheers,
Pete
Cheers Trev, actually I quite like crayfish, never tasted actual lobster
Glad you're enjoying the seafood imaging smorgasbord here

Last edited by Andy01; 13-06-2019 at 09:14 AM. Reason: typo
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Old 13-06-2019, 10:03 AM
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Cheers Trev
It's Pete not Trev - Perhaps you have me confused with another forum member?
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Old 13-06-2019, 10:05 AM
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Andy01 (Andy)
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It's Pete not Trev - Perhaps you have me confused with another forum member?
Apologies Pete - posted in haste - no offence intended.
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Old 13-06-2019, 10:46 AM
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multiweb (Marc)
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Agree with Greg, you've made a somewhat boring object look really good. Highres is a little chonky but hey, the size you've presented it at is just sublime both in term of depth and colours. Very very cool
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