Crescent Nebula Sh2 105 (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · NGC 6888 · Sh2-105

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Crescent Nebula Sh2 105

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Crescent Nebula Sh2 105

This is mainly for the "artistic" group to show a bit of what goes on with 3D LUT. The original color wheel has the hues around the wheel with saturation at the exterior and luminosity the white. This wheel is manipulated (among other tools) and results in the color changes seen in the after... goal is to better separate blues and reds.... move things around to map the L onto the RGB you want.

The starting point was a PixInsight PixelMath image with

R = 0.8*SII + 0.2*Ha

G =0.2*Ha + 0.8*OIII

B=OIII

This is what I use in the Tone Mapping developed by Rick Stevenson.

Original
Final
B

B

Description: Actual image produced with settings from 3D LUT in prior screen shot.

Uploaded: ...

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	3695833
PixInsight job	N5VMCXRTIKJ2NF2DKY7OPGU6KDF98UTR
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h12m12s.40
RA (top/left)	20h14m31s.94
RA (top/right)	20h10m53s.77
RA (bottom/right)	20h09m52s.35
RA (bottom/left)	20h13m29s.43

Dec (center)	+38°20′11″.6
Dec (top/left)	+38°26′35″.7
Dec (top/right)	+38°43′50″.6
Dec (bottom/right)	+38°13′36″.9
Dec (bottom/left)	+37°56′29″.5

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Crescent Nebula Sh2 105

Crescent Nebula Sh2 105

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Crescent Nebula Sh2 105

Crescent Nebula Sh2 105

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