NGC7000, the Cygnus Wall, SHO (PixelMath vs HT-Foraxx vs GHS-Foraxx) (AnaTa)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: HD200311 · LBN 354

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NGC7000, the Cygnus Wall, SHO (PixelMath vs HT-Foraxx vs GHS-Foraxx)

Revision title: GHS and Foraxx

Powered byPixInsight

NGC7000, the Cygnus Wall, SHO (PixelMath vs HT-Foraxx vs GHS-Foraxx)

Revision title: GHS and Foraxx

Main image is SHO. It was processed in three different ways
Panel A: HT-Foraxx
Panel B: General Hyperbolic Stretching (GHS)-Foraxx
Panel C: HT-Manual PixelMath

Processing:
RGB are combined.
Cropping for Ha, O3, S2 and RGB
DBE for Ha, O3, S2 and RGB. This step is critical to avoid subtracting nebulosity. Just 5 squares (60 size) were used in DBE.
Color Colib for RGB
Blur and Noise XT for Ha, O3, S2 and RGB

Manual stretching (with HT) for Ha, O3, S2 and RGB
General Hyperbolic Stretching (GHS) for Ha, O3 and S2
Star XT for RGB. These stars were saved for processing.

1. Processing (panel A)
HT stretched Ha, O3, S2 were used for Foraxx

2. Processing (panel B and main image)
GHS stretched Ha, O3, S2 were used for Foraxx

2. Processing (panel C)
HT stretched Ha, O3, S2 were used for PixelMath
Combined SHO in PixelMath
Red: Ha-0.9*Oiii
Green: 1.9*Sii+0.07*Ha-0.3*Oiii
Blue: 1.1*Oiii+0.05*Ha
Then SCNR, setting for green with amount=1.

All three processing were the same from this point.
Noise XT again
Stretching again
Star XT. These stars have been discarded.
Simple Lum mask for SHO
Local Histogram Equalization: Kernel radius of 40, 150 and then 250 (histogram resolution is 10-bit!)
Multiscale-median transform for sharpness; strong 0.4-0.5 setting.
Curves: saturation and brightness are manipulated
Mask off.
Saturated and reduced RGB stars are added to SHO image.

Done

Original
Final
B
C

B

Title: GHS and Foraxx

Uploaded: ...

C

Title: PixelMath

Uploaded: ...

Nebulas (Emission)

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	Distinct awarded users	Total awarded images
Image of the day
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Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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Amateur hosting facility
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Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	8344673
PixInsight job	B974N2KR0U4J8IE4R9F5ZKKPZXFWY38V
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h59m27s.168
RA (top/left)	20h57m25s.889
RA (top/right)	20h57m24s.514
RA (bottom/right)	21h01m27s.108
RA (bottom/left)	21h01m31s.446

Dec (center)	+43°37′39″.24
Dec (top/left)	+43°59′57″.52
Dec (top/right)	+43°15′47″.19
Dec (bottom/right)	+43°15′16″.16
Dec (bottom/left)	+43°59′26″.58

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Contribution Index (beta):

NGC7000, the Cygnus Wall, SHO (PixelMath vs HT-Foraxx vs GHS-Foraxx)

Revision title: GHS and Foraxx

NGC7000, the Cygnus Wall, SHO (PixelMath vs HT-Foraxx vs GHS-Foraxx)

Revision title: GHS and Foraxx

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Acquisition details

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B

C

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Image Index:

Contribution Index (beta):

NGC7000, the Cygnus Wall, SHO (PixelMath vs HT-Foraxx vs GHS-Foraxx)

Revision title: GHS and Foraxx

NGC7000, the Cygnus Wall, SHO (PixelMath vs HT-Foraxx vs GHS-Foraxx)

Revision title: GHS and Foraxx

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Sky plot

Histogram

In these collections

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