NGC 7023 (Paul Muskee)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 7023 · VdB139

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NGC 7023

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NGC 7023

Allot of upgrades behind this image after a break, so this was more or less a test with all the new stuff. The background is not yet optimal (purple blotch) but I will look into it for a updated version. I had allot of gradient to remove, will look into my second data set from last night how that works out and might redo this one.

Updated technical procedures:

- Using dithering (aggressive because of my OSC-camera).

- Longer exposures (300 sec) and higher gain (20).

- Using new full frame Riccardi reducer with Starlight Xpress 9 slot filter wheel.

Seems to have solved quite some issues which I still was experiencing.

Next will be start using my monochrome camera, ZWO ASI 1600 MM PRO, since my filter wheel is connected and working great.

Original
B
Final
C

B

Description: removed purple blotch from the background. Was actually quite easy using PixInsight. Created a mask using range selection so I could exclude all the signal, then applied massive de-saturation to the background. Much better.

Uploaded: ...

C

Description: tiny crop on top just to make it a little bit more perfect :-)

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.

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.
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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	2371089
PixInsight job	80PTHATRWGD0DZNX95P193U1TPU30SOA
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h01m14s.87
RA (top/left)	20h51m40s.87
RA (top/right)	21h02m52s.51
RA (bottom/right)	21h10m41s.72
RA (bottom/left)	20h59m30s.40

Dec (center)	+68°10′49″.5
Dec (top/left)	+68°18′00″.5
Dec (top/right)	+67°18′02″.3
Dec (bottom/right)	+68°01′37″.5
Dec (bottom/left)	+69°03′37″.1

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NGC 7023

NGC 7023

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Image Index:

Contribution Index (beta):

NGC 7023

NGC 7023

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Sky plot

Histogram

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