Veil Nebula with Vintage Camera Lens (Todd Stephens)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 52 Cyg · BW Vul · Filamentary nebula · IC 1340 · LBN 191 · LDN 846 · LDN 868 · Lace-work nebula · NGC 6960 · NGC 6974 · NGC 6979 · NGC 6992 · NGC 6995 · Network nebula · PK072-07.1 · Sh2-103 · T Vul · The star 52Cyg · Veil nebula

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Veil Nebula with Vintage Camera Lens

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Veil Nebula with Vintage Camera Lens

Veil nebula complex through a vintage Super Takumar SMC 135mm f/3.5 lens. This started out as an RGB image, but the chromatic aberration was so bad through this lens that the nebula was hardly visible. Then I added about 11 hours of data through a dual-band filter, but unfortunately this lens was not capable of focusing the OIII and H-a wavelengths simultaneously. I added an additional 2 hours of H-a data before the clouds struck. The combined HOO image looked decent, but the background was very noisy and the stars had a blue cast.

This image is a combination of the RGB background and stars. The stars were removed, and then a stars-only image was generated in GIMP. Then the HOO image was blended with the RGB background without stars with a luminance mask. The stars were blended back in, first with the "erode" filter to eliminate the dimmest stars. Then the full star image was blended back with 10% opacity to minimize the impact of the dim stars, which blended in nicely with the sharp HOO image.

The image is still not so great... but considering where it started... maybe not half bad?

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Status	Advanced success
Started	...
Astrometry.net job	3256082
PixInsight job	PFSP3AG9J9ZKCDQOYLBUF8ZI8SO6OVEJ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h49m56s.27
RA (top/left)	20h48m33s.10
RA (top/right)	20h35m49s.47
RA (bottom/right)	20h51m14s.12
RA (bottom/left)	21h04m21s.90

Dec (center)	+30°27′14″.0
Dec (top/left)	+33°44′25″.4
Dec (top/right)	+29°12′38″.6
Dec (bottom/right)	+27°09′59″.4
Dec (bottom/left)	+31°35′49″.2

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Veil Nebula with Vintage Camera Lens

Veil Nebula with Vintage Camera Lens

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Veil Nebula with Vintage Camera Lens

Veil Nebula with Vintage Camera Lens

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