Centaurus-A (NGC 5128 / C77) (Harold Freckhaus)

Centaurus-A (NGC 5128 / C77)

J'ai repris mon traitement précédant de C77 pour tenter de mieux gérer les étoiles et de faire ressortir plus de détails autour de cette galaxie très lumineuse.
Traitement réalisé sous PixInsight, avec des process très classiques pour tout le traitement en linéaire. Je n'ai pas utilisé les process DBE et ABE pour garder la luminosité qui entoure Centaurus A.
Pour le passage en Non-Linéaire je l'ai réalisé avec GHS en deux passes.
Je me suis un peu loupé sur la réduction des petites étoiles ... je retenterai un jour peut-être (LOL).
Au final j'ai fait les ajustements "cosmétiques" via RawTherapee (sortie TIF) et PhotoShop pour la rotation, le recadrage + léger ajustement tonalité et contraste et la sortie PNG 16bits.

J'espère quelle vous plaira.
N'hésitez pas à commenter et à m'apporter vos conseils.

CS
Harold

_______________________________________________________________________________________________
I revisited my previous treatment of C77 to try to better manage the stars and bring out more details around this very bright galaxy.
Processing carried out under PixInsight, with very classic processes for all linear processing. I did not use the DBE and ABE processes to keep the luminosity that surrounds Centaurus A.
For the Non-Linear transformation, I did it with GHS in two passes.
I was a bit confused on the reduction of the small stars ... I will try again one day maybe (MDR).
In the end I made the "cosmetic" adjustments via RawTherapee (TIF output) and PhotoShop for rotation, cropping + slight tone and contrast adjustment and 16bit PNG output.

I hope you'll like it.
Feel free to comment and give me your advice.

CS
Harold

Final
Original
B

B

Title: C77 aka Centaurus-A (NGC 5128)

Description: 1x1

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Status	Advanced success
Started	...
Astrometry.net job	5692284
PixInsight job	4V0KQDJPPUKCQPU337AGG3WP87Z67HM0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h25m27s.214
RA (top/left)	13h26m34s.882
RA (top/right)	13h24m19s.572
RA (bottom/right)	13h24m19s.173
RA (bottom/left)	13h26m35s.230

Dec (center)	-43°00′51″.15
Dec (top/left)	-42°51′05″.36
Dec (top/right)	-42°51′05″.14
Dec (bottom/right)	-43°10′34″.40
Dec (bottom/left)	-43°10′34″.70

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