Eta Carinae bi-colour

[Chris85 (Chris)]

Hi all,
I figured I'd throw another Eta into the mix. The original plan was to do a Hubble palette but the S2 data was rubbish, so for now just a HOO bi-colour will do. Also the colours are a bit wonky but that's mostly because I'm not really sure what I'm doing. I think it looks cool though.
6 x 900s Ha and 9 x 900s O3
Apo 115mm F7 with Moravian G2 8300
SGP, Startools and Nebulosity.

Astrobin link for those that are interested http://astrob.in/285026/0/

Thanks for looking!
Cheers,
Chris

[strongmanmike (Michael)]

Yeah a nice result Chris...even if only ETA

Mike

[Placidus (Mike and Trish)]

That's one of the nicest bicolour eta carinae's that I've ever seen. Love to know how you got that warm friendly look. (No hint of the awful magenta and purple blood and guts look that some folk get trying to reproduce natural colour.)

You've clipped the bottom of the histogram for the red and green channels, so possibly losing some of your very faintest detail and making the blacks a bit too all-or-nothing.

The sharpness is amazing. When I see a photo like this taken with a small scope, it reminds me that a huge scope at close to sea level in summer has no advantage in sharpness and may even be worse.

A nice new feature that I'd never noticed before: about 50% of the way from centre to top left, just beyond the region with the two famous HH jets (which you have captured nicely) there is what looks like a Leunig Mr Curly style wave breaking toward the left (or is it that famous Hiroshigi great wave?), above a darker cavity. Immediately toward top right from this curly wave is the very recognizable profile face of Cyrano de Bergerac.

Good stars too, except perhaps there seems to be some curious swirly artifact around eta Carinae itself.

Best,
Mike

[Camelopardalis (Dunk)]

Looks a beauty Chris lots of lovely detail in there...

[Flugel88 (Michael)]

Very nice Chris
Shame about your Sulfur data but still a great image.
FOV is nice you have all the good bits in there and still have sharp resolution.

[Chris85 (Chris)]

Originally Posted by strongmanmike

Yeah a nice result Chris...even if only ETA

Mike

Cheers, Mike!

Originally Posted by Placidus

That's one of the nicest bicolour eta carinae's that I've ever seen. Love to know how you got that warm friendly look. (No hint of the awful magenta and purple blood and guts look that some folk get trying to reproduce natural colour.)

You've clipped the bottom of the histogram for the red and green channels, so possibly losing some of your very faintest detail and making the blacks a bit too all-or-nothing.

The sharpness is amazing. When I see a photo like this taken with a small scope, it reminds me that a huge scope at close to sea level in summer has no advantage in sharpness and may even be worse.

A nice new feature that I'd never noticed before: about 50% of the way from centre to top left, just beyond the region with the two famous HH jets (which you have captured nicely) there is what looks like a Leunig Mr Curly style wave breaking toward the left (or is it that famous Hiroshigi great wave?), above a darker cavity. Immediately toward top right from this curly wave is the very recognizable profile face of Cyrano de Bergerac.

Good stars too, except perhaps there seems to be some curious swirly artifact around eta Carinae itself.

Best,
Mike

Thanks for the amazing encouragement , Mike. If it's any help, my colour channels were blended as R:Ha, B:O3 and G:Ha 0.2+O3 0.8 in Maxim, then it was over to Startools for some non-linear stretching and a very slight decon.. Which I think caused the weird artifact around Eta. Then I put it all into Nebulosity 4 for some curves adjustment and used it's auto colour balance, and then end result is what you see now. I have no idea how it those 2 channels got clipped. I only noticed when I uploaded it to astrobin and the histogram was all over the place!

Originally Posted by Camelopardalis

Looks a beauty Chris lots of lovely detail in there...

Thanks, mate

Originally Posted by Flugel88

Very nice Chris
Shame about your Sulfur data but still a great image.
FOV is nice you have all the good bits in there and still have sharp resolution.

Cheers. I had another go at getting some S2 last night, but I suspect the filter may be tilted or something in the carousel as stars are all over the place, unlike my other filters.

[alpal]

Hi Chris,
superb resolution - so sharp.

cheers
Allan