NGC456 Nebula- deeper

[PKay (Peter)]

Hi Fred.

I reckon this work is a good example of what is (actually) out there.

It gives me a lot of inspiration and thank you for that.

All points for effort.

Very well done.

[Bassnut (Fred)]

Thanks Peter

Ive thought about your comment. Its NB not RGB so actually is a bit tricky. RGB is a bit meaningless for emission nebula given Ha and SII is or almost outside the human visual spectrum. If actually means what a human would see then no, but colour mapped NB absolutely shows the actual structure and detail.

Edit. I now think you might have meant the depth, well, that was the plan

[Shiraz (Ray)]

extraordinary deep image fred.

I have been trying to find out what exactly the main features are, but have not had any success yet on WWW. Does the split between the 3 filters indicate what physics may be behind the structures? grateful for any advice. Cheers Ray

[Bassnut (Fred)]

Thanks Ray!.
I haven't found much info either.
I've attached the 3 filter pics (before final processing), pretty rough and noisy, but you may be able to figure out the physics .
In order Ha, OIII, SII
Cheers
Fred

[Shiraz (Ray)]

Originally Posted by Bassnut

Thanks Ray!.
I haven't found much info either.
I've attached the 3 filter pics (before final processing), pretty rough and noisy, but you may be able to figure out the physics .
In order Ha, OIII, SII
Cheers
Fred

Thanks for that Fred. Going out on an uneducated limb, reckon the blobs may be Stromgren spheres, complete with internal shock fronts due to inhomogeneous medium. Your image goes deep enough to show the fairly sharp edges of the spheres.
Lots of closer examples, including one in Orion eg https://www.yumpu.com/en/document/vi...i-regions-cesr
http://www.ifa.hawaii.edu/~jpw/class...ed_regions.pdf
https://www.sciencedirect.com/topics...A9%BE13.6%20eV).

None of which takes away from the fact that yours is a wonderful deep image.. Cheers Ray