sh2-142 / NGC7380- The Wizard Nebula and open cluster in Cepheus (Daniel.P)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 7380 · PK107-00.1 · Sh2-142 · Sh2-143

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sh2-142 / NGC7380- The Wizard Nebula and open cluster in Cepheus

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Powered byPixInsight

sh2-142 / NGC7380- The Wizard Nebula and open cluster in Cepheus

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Note : with the first use of "remove magenta star" script I realize that star colors are quite OK in the straight SHO image as compared to what I can improve applying RGB colors on stars.

Process in PI :

For each S, H, O, R, G, B channels :

- Images Calibration (Dark and Flat)

- Cosmetic Correction

- Image Registration

- Image Integration

- Mure Denoise (for RGBSHO)

Then :

- Create SHO image and color balance on nebula

- Apply "remove magenta star script" with 0.8 attenuation

- Create RGB image and color balance on stars

- DBE SHO & RGB images

- Deconvolution of SHO & RGB images using 2.0 psf

- Delinearisation using HT of both SHO & RGB images

- SCNR of SHO image

- Color Saturation range masked (and desaturate bkg) of both images

- Create a star mask using starnet++ on L channel of the RGB image

- Apply "a" & "b" color channels of the RGB image to the SHO image under star mask

(this is to apply natural color to the stars) (for the second image only)

- TGV denoise (no mask)

- Deflip

Final image adjustments performed in Photo on Imac :

- levels adjustments

- adjust color looking using "selective color"

- boost sharpness & definition

- crop

Original
B
C
Final
D
G

B

Description: Star color from RGB image

Uploaded: ...

C

Description: Using CT to better use color range

Uploaded: ...

D

Description: Use of CT for better color range v2

Uploaded: ...

G

Description: RGB

Uploaded: ...

Sharpless2 Objects
ZWO ASI1600MM/QHY163M

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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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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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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	3484480
PixInsight job	1WGLTQSLP6JCP12BPNYXN36OO8FA87WG
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h47m26s.943
RA (top/left)	22h51m54s.282
RA (top/right)	22h43m01s.590
RA (bottom/right)	22h43m05s.959
RA (bottom/left)	22h51m46s.253

Dec (center)	+58°04′18″.86
Dec (top/left)	+58°30′00″.26
Dec (top/right)	+58°30′17″.96
Dec (bottom/right)	+57°38′03″.20
Dec (bottom/left)	+57°37′47″.37

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sh2-142 / NGC7380- The Wizard Nebula and open cluster in Cepheus

sh2-142 / NGC7380- The Wizard Nebula and open cluster in Cepheus

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Image Index:

Contribution Index (beta):

sh2-142 / NGC7380- The Wizard Nebula and open cluster in Cepheus

sh2-142 / NGC7380- The Wizard Nebula and open cluster in Cepheus

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