NGC3576 in Narrowband

[alistairsam]

Quick process of a narrowband image taken last night. NGC3576.
RGB Mapped as HaS2O3

Ha - 4 x 900, S2 - 2 x 900, OIII - 2 x 900

Larger version here http://www.astrobin.com/full/143285/0/

Gear used
SBIG STF8300m, Orion AO, 10inchF4, NEQ6Pro, Lodestar X2
Processed in Startools

comments welcome.

Edit: Updated version in last post

Alistair

[RickS]

Nice and colourful, Alistair!

[Placidus]

Very fine, Alistair. Too much linear stretch and the brights clip and look harsh. Perhaps you could try more curve and less white point clipping. Otherwise, :thumbsup: :thumbsup: Best, Mike.

[alistairsam]

Thanks for the feedback Mike, Rick.
If it stays clear I'll be adding more O3 and Ha to bring out the blues and will try a less aggressive stretch.

Cheers
Alistair

[alistairsam]

Added more data and reprocessed in startools from scratch. will be adding more O3 and S2 once it cools down over the next few days.
still a work in progress, I like the dynamics of this target and there are so many versions of it.

Larger version here
http://www.astrobin.com/full/143285/B/

Cheers
Alistair

[strongmanmike]

Excellent Alistair, like this colour palette better than the first (but we know how subjective this is ;)). Some lovely detail but in the bright areas...I'm not quite sure how much is real detail and how much is processing/sharpening artifacts :question:

Overall though (without nit picking) and viewed a little smaller (67%) on the screen (to hide the warts) it really looks pretty damn good :thumbsup:

Mike

[alistairsam]

Thanks for the feedback Mike.

I had to use decon as I'm struggling with high fwhm values. This was above 5. doesn't help with the night is warm either. had strong gradients in O3 and S2 as well.`

Once I add more data, I'll do two versions, one with decon and sharpening and one without.

Cheers
Alistair

[Andy01]

Great stuff Al, good looking image, very sculpturesque - reckon to pump those blues a bit it's thirsty for yet more O3 if you could manage to get it! So much going on there and you've brought out lots of detail :)

[LucasB]

Great detail there Alistair and like Mike I love the colour palette of the second processing. Great to see you getting some extra subs on the one target. Your set up is really starting to give you the rewards!
Lucas

[Placidus]

Much improved, Alistair. You've got those big over-arching bubbles nicely. The stars are much better. Very best, Mike.

[alistairsam]

My final rendition of NGC3576 in Narrowband.
Added more data and its the longest I've imaged any target, 4.2hrs in total.

Details -
Processed entirely in Startools,
Ha - 7 x 15mins, S2 - 5 x 15mins, O3 - 5 x 15mins.
RGB mapped as S2:Ha:O3 with Ha as the Luminance.
10inchF4 Newt, SBIG STF8300m CCD, Orion Steadystar AO, NEQ6Pro

Larger version here http://www.astrobin.com/full/143285/B/

Comments welcome.

Cheers
Alistair