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View Full Version here: : M17 Swan Nebula in NB....deepish


Bassnut
17-09-2017, 06:04 PM
Hi Guys
M17 Swan Nebula in Colour Mapped Narrowband
Taken on my RCOS 10" RC Scope at f9, SBIG STXL6303E Camera and PME mount at itelescopes Siding Spring Observatory.
Processed with CCDstack, Star Tools and Photoshop. 52 hrs Total exposure time.
Ha, SII,Ha,OIII. Mapped as LRGB in "modified Hubble"
The Swan Nebula (also known as the Omega Nebula) is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter
Ha 32hrs, 40min subs bin1. SII 18hrs 40min subs bin2, OIII 12hrs 40min subs bin2.

Big here (https://fredsastro.smugmug.com/Photography/Astrophotography-1/i-rczZtK3/A)

Lots of SII in this one as it turns out, provided a lot of data :thumbsup:.

Quite a few stars were sacrificed for artistic effect because they are annoying :P

I pushed Ha pretty hard (as lum), it was a pleasure to be able to without being buried in noise, its fairly bright.

Stevec35
17-09-2017, 06:22 PM
impressively deep for sure.

Steve

Atmos
17-09-2017, 06:43 PM
It can be dangerous when you start considering sacrificing stars to the gods, who knows what'll happen :P

The end result is very nice though, very deep in hydrogen!

Placidus
18-09-2017, 05:30 AM
A white swan swimming on a flaming lake. One roast swan coming up.

The depth is most impressive, as is the treatment of the dust lanes especially toward the less-often-photographed left side.

Bassnut
18-09-2017, 10:09 AM
Thanks Steve, I was surprised how much extra nebula appeared.



Thanks Colin. Guiding would become difficult :D. The depth did make the whole nebula look less recognisable though.



Cheers Mike, the composition to show the left side wasn't planned, just good luck.

RickS
18-09-2017, 10:46 AM
A very striking Swan, Fred! I've never been happy with my SHO images of M17 but yours is most impressive :thumbsup:

multiweb
18-09-2017, 10:56 AM
Ultra deep nebulosity. Very cool. :thumbsup:

gregbradley
18-09-2017, 12:04 PM
Wow, that's a different look. The depth shows it in a totally different way.

Greg.

strongmanmike
18-09-2017, 01:22 PM
Well...slap some paint on the canvas and whack me in the face! :eyepop:...pretty cool Fred :thumbsup:

Mike

Bassnut
19-09-2017, 06:37 AM
Thanks for the nice feedback Rick, Marc, Greg and Mike, much appreciated :D :thumbsup:

Andy01
19-09-2017, 12:16 PM
Love it Fred, big bold colours - Like a Gauguin in Space! :D
If one nitpics, it appears you may have missed a few red stars bottom right & top left though.
Well done, all hail the King of NB! :prey2:

JA
19-09-2017, 01:32 PM
Simply wonderful Fred, as was the rest of your gallery. :thumbsup:

Best
JA

rustigsmed
19-09-2017, 07:35 PM
Fiery as Fred ! Refreshing to see a different view!

Russ

Paul Haese
23-09-2017, 06:17 PM
There is a lot of Ha in that region. You have certainly captured a lot of that.

04Stefan07
28-09-2017, 12:21 PM
:jawdrop:

Ryderscope
01-10-2017, 08:03 AM
Definitely jaw dropping :thumbsup: