View Full Version here: : A Smile, not a Prawn (NGC3199 narrowband)
RickS
14-06-2016, 07:38 PM
I captured the data for this image two years ago from home and have had a few goes at processing it. This is my best result so far though I'm still not over the moon about it. It's not a particularly crisp object and the distribution of Ha, Oiii and Sii seems to result in murky colours in typical narrowband palettes. I ended up basing the colour on a bi-colour Ha/Oiii combo with some subtle green additions from Sii.
NGC3199 is an unusual emission nebula created by the Wolf-Rayet star HD89358, described in one paper as an "interstellar snow plough" that has created a distorted bubble by moving through a uniform interstellar medium.
Data captured at St Lucia, 25 April to 15 May, 2014
Scope: Ceravolo C300 @ f/9 = 2760mm FL, Atlas focuser
Mount: AP900
Camera: U16M
Filters: Astrodon E series Gen 2 LRGB, 3nm HA, OIII, SII
Guiding: Lodestar / MMOAG
Image scale: 0.67 arcsec/pixel
Exposures: 19x1200s Ha, 14x1200s OIII, 16x1200s SII (16.3 hours)
Processing: PixInsight 1.8
Full res version: http://www.astrobin.com/full/251834/B/
Happy to receive constructive criticism as always...
Cheers,
Rick.
strongmanmike
14-06-2016, 07:44 PM
Check that out!.. he he cool :thumbsup:...lots of nebulosity there. Always know a deep 3199 when the nebulosity forms a complete circle rather than just an arc, nice work :thumbsup: colours?...wheel, they are 2 years old :question:..so not current dude, bit 2014's now :lol:...nah, not bad :)
Mike
RickS
14-06-2016, 07:51 PM
:lol: thanks, Mike. Are pastels in this year?
Stonius
14-06-2016, 07:53 PM
Hope you don't mind, but I ran the image through Deep Dream to see what it made of the prawn / smile debate.
As you can see it's actually a dog, a victorian building, a couple of birds and a car. Obviously! :-)
RickS
14-06-2016, 07:56 PM
That's pretty cool, Markus :) Not sure the PI purists would approve :lol:
ozstronomer
14-06-2016, 08:22 PM
Great image Rick, love the colours and plenty of nebulosity
Cheers Geoff
janoskiss
14-06-2016, 09:04 PM
:jawdrop:
prawns, smiles, whatever, you guys are just too good! How dare you!? :P
@Stonius I'll have what you're having but then we both have to stop. ;)
gregbradley
14-06-2016, 09:35 PM
Very electric Rick. Quite an impinging image. A wild ride. It shows the violence of the area.
Greg.
Paul Haese
14-06-2016, 09:46 PM
Nice detail and scale Rick. I really like the colours too.
marc4darkskies
14-06-2016, 10:25 PM
Yep, a riot of beautiful colour, nicely done Rick!
Atmos
14-06-2016, 10:31 PM
Really nice Rick, I can see what you mean by many defined structures, just goes to show how energetic and turbulent the area is! Has some lovely colours though and is reminiscent of an airbrush painting in areas.
RickS
15-06-2016, 06:58 AM
Thanks, Geoff!
Thanks, Steve :lol:
Ta, Greg. There's some weird stuff going on in there according to the professionals.
Thanks, Paul. I really struggled with the colour so I'm glad that it appeals to folks with more taste than me ;)
Thanks very much, Marcus, and I do take your point about narrowband colour offering greater freedom.
Placidus
15-06-2016, 07:29 AM
Well done, Rick. You've captured some truly faint extensions there.
I agree that it's a difficult object to present impressively because the object seems inherently soft and diffuse, and there's not much SII either. You've come up with a good answer.
Placidus
15-06-2016, 07:32 AM
Well done, Rick. You've captured some truly faint extensions there.
I agree that it's a difficult object to present impressively because the object seems inherently soft and diffuse, and there's not much SII either. Concentrating on the faint stuff that is there has done the trick.
Retrograde
15-06-2016, 02:26 PM
Stunning detail. Very nice.
Andy01
15-06-2016, 04:48 PM
Best version of that DSO I've seen to date Rick, well done!
Looks very 3D and kinda organic - great use of the colour palette too :thumbsup:
lazjen
15-06-2016, 05:32 PM
It's certainly weird looking. It's almost bioluminescent. :)
Looks good though!
Stevec35
15-06-2016, 05:32 PM
Yep - I reckon that's probably the best ngc 3199 I've seen Rick.
Cheers
Steve
mountainjoo
15-06-2016, 06:43 PM
Great colours, electric!
janoskiss
15-06-2016, 07:56 PM
That's because he injected the nebula with fluorescent dye before taking the picture. Bloomin cheat! :P
Interesting one Rick. Final colour choice seems to work really well. Has matured nicely with age I'd say :)
gvanhau
15-06-2016, 11:20 PM
Very nice capture and I like the field of view.
I also captured this one some moths ago, but my field of view is narrower and did not like the colors I got, so still lying arround for another processing athempt.
Geert
RickS
16-06-2016, 01:38 PM
Thanks, Mike.
Ta, Pete.
Thanks, Andy. The colour really threw me for a while but eventually it came together.
Thanks, Chris :lol:
Thanks, Steve!
Thanks, Jerome.
Reminds me of my misspent youth messing around with fluorescein.
Ta, Rob.
Thanks, Geert. I saw yours. Look forward to the next version.
Ross G
18-06-2016, 04:37 PM
Great looking closeup Rick.
Amazing amount of faint detail.
Ross.
RickS
19-06-2016, 04:30 PM
Thanks, Ross!
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