Smile nebula :-) NGC3199

[marco (Marco Lorenzi)]

Dear all, in the link below is a new HaOIIIRGB image from Coona, NGC 3199, another interesting object set in a very rich star field:

http://www.glitteringlights.com/Imag...VrSJ&lb=1&s=X3

This time I didn't collect as much light as I usually do for other images, in particular on Ha and OIII, however, apart from a little noise higher than usual (I stretched a lot the narrowband trying to reveal all subtle nebular details), I am quite pleased with the result. It is quite interesting IMHO the interaction between OIII and Ha emissions on NGC3199 that produces a peculiar coloration of the nebula.

Details are on the related page.

I hope you will enjoy the view

Clear skies
Marco

[jjjnettie (Jeanette)]

Beautiful colours Marco.

[cybereye (Mario)]

Marco,

It put a smile on my face!!

Mario

PS Noi che sorridi rimani giovani!

[LightningNZ (Cam)]

Super cool field! That's a lovely image. I love the colours and subtlety in the processing.

Thanks for posting!
Cam

[alpal]

That's a superb image Marco -
I looked at the largest size.
Thanks for posting & I'll include it on my target list.

[tilbrook@rbe.ne (Justin Tilbrook)]

Hi marco,

I like your images, they always inspire me!

Cheers,

Justin.

[multiweb (Marc)]

Nice field Marco. Interesting and very colourful. Did you blend the Oiii in the blue channel and Ha in the red. What ratio do you usually use?

[gregbradley]

That's a beauty and nicest I have seen of this area. It has the same sort of colour as the witch head nebula.

I have data of this one (among several objects) that I haven't processed yet. I'll have to get off my proverbial.

Greg.

[strongmanmike (Michael)]

This is a unique view Marco...I don't think I have seen this framing before nor the contrasting grey blue/purple in NGC 3199 - nice look

Mike

[seeker372011 (Narayan)]

Lovely shot of the smile and the object I call the whirling dervish nebula..NGC 3247

( you have to rotate your image 90 deg counterclockwise to see the whirling dervish)

[TrevorW]

[Lester]

Very nice view Marco. This is a new one to me. All the best.

[marco (Marco Lorenzi)]

Originally Posted by Lester

Very nice view Marco. This is a new one to me. All the best.

Thanks you Lester!

Originally Posted by TrevorW

Thanks Trevor

Originally Posted by seeker372011

Lovely shot of the smile and the object I call the whirling dervish nebula..NGC 3247

( you have to rotate your image 90 deg counterclockwise to see the whirling dervish)

Thanks for the name suggestion and comments Narayan

Originally Posted by strongmanmike

This is a unique view Marco...I don't think I have seen this framing before nor the contrasting grey blue/purple in NGC 3199 - nice look

Mike

Thanks Mike

Originally Posted by gregbradley

That's a beauty and nicest I have seen of this area. It has the same sort of colour as the witch head nebula.

I have data of this one (among several objects) that I haven't processed yet. I'll have to get off my proverbial.

Greg.

Thank you Greg!

Originally Posted by multiweb

Nice field Marco. Interesting and very colourful. Did you blend the Oiii in the blue channel and Ha in the red. What ratio do you usually use?

Thanks Marc! I don't use to blend Ha and/or OIII directly to a channel. What I do instead in PS is to add to the RGB a layer with the narrowband monochrome image, add a clipping mask "Hue and Saturation" on the narrowband, than check "colorize" box, set hue (Ha=350 OIII=192), saturation (100%), luminosity (-50) and than change the blending of the monochrome (now colorized) to "lighten". You can than experiment with curves and even retouching the hue of the narrowband you are adding to find the result that better matches your taste and goals.
That gives a much better control on the addition of NB to RGB..
You can see this technique described in several places in the net, (here is a good tutorial, I use lighten instead of screen for blending).
Hope this help

Originally Posted by tilbrook@rbe.ne

Hi marco,

I like your images, they always inspire me!

Cheers,

Justin.

Thanks Justin, you are very kind!

Originally Posted by alpal

That's a superb image Marco -
I looked at the largest size.
Thanks for posting & I'll include it on my target list.

Happy to know I inspired one of your next targets Alpal !

Originally Posted by LightningNZ

Super cool field! That's a lovely image. I love the colours and subtlety in the processing.

Thanks for posting!
Cam

Thanks Cam

Originally Posted by cybereye

Marco,

It put a smile on my face!!

Mario

PS Noi che sorridi rimani giovani!

Haha, nice to know that Mario! Cheers

Originally Posted by jjjnettie

Beautiful colours Marco.

Thank JJJ

[stevous67 (Steve M)]

Nice balance of colouration Marco, interesting FOV.

Steve

[madbadgalaxyman (Robert)]

Hello Marco,

The bright patch of nebulosity on the left hand side of your image, which seems to be the brightest part of a much larger nebular complex, is known as RCW 49. It is accompanied by the distant supermassive star cluster Westerlund 2.

The compact distant cluster is small in your image, but visible.

I present various images of Westerlund 2 in my recent thread in the science forum:
http://www.iceinspace.com.au/forum/s...50#post1074450
(note also that there is an accompanying thread giving details about the cluster)

Best regards,
Robert Lang

[atalas]

Very nice Marco.