Dusty SH2-9 & NGC 6121

[Andy01]

Sh2-9, also called Gum 65 is a combination emission and reflection nebula in the Scorpius constellation, surrounding the multiple star system Sigma Scorpii.

This image combines Ha data from my light-polluted suburban location & LRGB from my buddy Blue's dark site in rural Victoria, Australia.

I was surprised by how much dust is present in this region, which doesn't appear in many other images, and I've attempted to balance this LUM dust with the Ha signal, while letting blue giant star Alniyat reign supreme :)

Chroma Blue 2": 20×240″(1h 20′) bin 1×1
Chroma Green 2": 17×240″(1h 8′) bin 1×1
Chroma H-alpha 5nm Bandpass 2": 20×900″(5h)
Chroma Lum 2": 31×120″(1h 2′) bin 1×1
Chroma Red 2": 16×240″(1h 4′) bin 1×1
Integration:
9h 34′

ASTROBIN (https://www.astrobin.com/full/cnev25/C/)

PIXEL PEEPERS (https://www.astrobin.com/full/cnev25/C/?mod=&real=) can look here.

C&C welcome: (References to BBQ cuts not required) :D

[gregbradley]

A sensational image. That glob looks fabulous and the tight stars across the field are amazing.

Of course the super bright star sets it off really well. Love it.

Greg.

[Peter Ward]

Lovely.

Minor quibbles: the stars of NGC6121 ( aka M4 ) have been rendered a little too blue plus there are dark sharpening artifacts/rings around smaller field stars.

None the less, an interesting and colourful result after having gone deep to showcase the nebulosity near a popular globular. :thumbsup:

[petershah]

beautiful process...clean with real nice star colour :thumbsup:

[strongmanmike]

Most enjoyable! :thumbsup: and a nice composition on this one too Andy, it's a great pairing.

All these new images coming out from you, where you been hiding them?..any more in the cupboard? :)

Mike

[Dave882]

Oh wow that’s incredible. I just love the composition and the subtle detail layered in behind Alniyat. I hope you’ve got some hanging space left on your wall…

[Ryderscope]

A great composition of objects that sit very nicely together in the same field :thumbsup:

[strongmanmike]

Aaaah huh!... just had a look in AstroBin! ;)...love the Rosette :thumbsup:

Mike
maybe I finally join AstroBin...? :question:

[Andy01]

Thanks Greg, appreciate the feedback. :)



Thanks Peter, stars too blue compared to what? A reference would be useful as otherwise it's just an opinion. Would you have one to share? Thanks for your feedback. :)




Many thanks Peter, interesting how star colours evoke different opinions :lol:



Many thanks Mike, appreciate the comments. I enjoyed framing this one too, seems to balance pretty well. Maybe there's a couple more for this season. ;)



Lol, probably should pop a couple of new ones up on the wall, really appreciate the incisive comments too, cheers! :D



Thanks Rodney, glad you enjoyed the view! :)



Yep, that's where all the cool people are now Mike :cool3:

[Peter Ward]

M4 has a white dwarf population. This Chart32 image (https://www.chart32.de/images/objects/clusters/M4/M4_7xRGB_80.jpg) shows it pretty well. Similarly with Hubble/ESO images.

Sure "artistic license" lets you bias the colour temperature as you wish, but their spectral signature is mainly white. ;).

But if blue floats your boat, stick with it. :)

[Andy01]

Thanks Peter, but the link appears to be broken?

[Peter Ward]

humm :question: ...think is fixed now, but to be sure

https://www.chart32.de/images/objects/clusters/M4/M4_7xRGB_80.jpg