IC5146, the Cocoon Nebulae, HSS (AnaTa)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B168 · Cocoon Nebula · IC 5146 · LBN 424 · LDN 1055 · Sh2-125 · VdB147

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IC5146, the Cocoon Nebulae, HSS

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IC5146, the Cocoon Nebulae, HSS

Main image is HSS. 5min-long O3 exposure produced zero. This is supposed to be emission/reflection nebulae. So, I will work on LRGB image. Although, bortle 7 is not suited for reflection nebulae.

Processing:
RGB are combined.
Cropping for Ha, S2 and RGB
DBE for Ha, S2 and RGB
Color Colib for RGB
Blur and Noise XT for Ha, S2 and RGB
Manual stretching (with HT) for Ha, S2 and RGB
Star XT for RGB. These stars were saved for processing.

Combined HSS in PixelMath
Red: 1.1*Ha - 0.3*S2-5min
Green: 1.1*S2-5min +0.05*Ha
Blue: 1.5*S2-3min

Noise XT again
Stretching again
Star XT. These stars have been discarded.

Simple Lum mask for HSS
Local Histogram Equalization: Kernel radius of 40, 150 and then 250
Multiscale-median 0,4 setting transform for sharpness.
Curves: saturation and brightness are manipulated slightly
Mask off.
Saturated and reduced RGB stars are added to HSS image.
Done

Nebulas (Emission)

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	8249542
PixInsight job	405FGQVL8E4TJZ86VLMYMBWSPH3VGVEY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h53m28s.839
RA (top/left)	21h54m33s.246
RA (top/right)	21h54m35s.324
RA (bottom/right)	21h52m23s.925
RA (bottom/left)	21h52m22s.751

Dec (center)	+47°16′02″.90
Dec (top/left)	+47°04′46″.40
Dec (top/right)	+47°26′58″.77
Dec (bottom/right)	+47°27′15″.10
Dec (bottom/left)	+47°05′02″.70

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IC5146, the Cocoon Nebulae, HSS

IC5146, the Cocoon Nebulae, HSS

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IC5146, the Cocoon Nebulae, HSS

IC5146, the Cocoon Nebulae, HSS

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