IC405 (Flaming Star Nebula) HaRGB - 7 Jan 2022 (Geof Lewis)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: 17 AR Aur · 18 Aur · 19 Aur · AE Aur · Flaming Star Nebula · IC 405 · LBN 791 · LBN 795 · LBN 796 · LDN 1510 · Sh2-229 · The star 19Aur

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IC405 (Flaming Star Nebula) HaRGB - 7 Jan 2022

Revision title: Fixed artefact around the flaming star itself

Powered byPixInsight

IC405 (Flaming Star Nebula) HaRGB - 7 Jan 2022

Revision title: Fixed artefact around the flaming star itself

Original
B
Final
C

B

Title: Reduced Ha contribution to 40%

Description: I reduced the Ha contribution to the red channel to 40%, to better preserve the RGB star colours, without losing too much, if any, of the Ha detail in the nebula. I also didn't reduce stars sizes much as I prefer to see the nebula within the colourful star field.

Uploaded: ...

C

Title: Fixed artefact around the flaming star itself

Description: I had an issue with the namesake 'flaming star' in the nebula itself. I previously tried to fix a horrible halo that was the result of the star removal process, by cloning neighbouring pixels, but when you looked closely you could see a square box effect around the star, which looked very unnatural. So I've reprocessed an earlier stage of the data, before the star removal, increased the stretch to bring the brightness level up to match the earlier finished image, then created a very small mask around the star and blended the two images together. I think it's worked fairly well and was fun trying to find a better solution to the star halo problem.

Uploaded: ...

Nebulae

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Status	Advanced success
Started	...
Astrometry.net job	5385499
PixInsight job	OOH4FDXRUWX9NTOYDL4XF08L24TUVSYO
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h16m01s.96
RA (top/left)	05h20m19s.41
RA (top/right)	05h11m50s.26
RA (bottom/right)	05h11m48s.81
RA (bottom/left)	05h20m09s.75

Dec (center)	+34°13′17″.9
Dec (top/left)	+34°51′29″.6
Dec (top/right)	+34°53′02″.7
Dec (bottom/right)	+33°34′34″.8
Dec (bottom/left)	+33°33′00″.6

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IC405 (Flaming Star Nebula) HaRGB - 7 Jan 2022

Revision title: Fixed artefact around the flaming star itself

IC405 (Flaming Star Nebula) HaRGB - 7 Jan 2022

Revision title: Fixed artefact around the flaming star itself

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IC405 (Flaming Star Nebula) HaRGB - 7 Jan 2022

Revision title: Fixed artefact around the flaming star itself

IC405 (Flaming Star Nebula) HaRGB - 7 Jan 2022

Revision title: Fixed artefact around the flaming star itself

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