NGC 7023 Iris Nebula (JohnAdastra)

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

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NGC 7023 Iris Nebula

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NGC 7023 Iris Nebula

The Iris Nebula

Taken with the ASI071MC camera, this image appeared quite a bit better than my previous attempts in light polluted suburbia with more defined dust regions. Any type of dark nebula or dust lanes is typically very hard for me to tease out from the background skyglow, but this camera with the CLS-CCD filter helped do the trick.

Subframes were processed with PixInsight WBPP 2.2.1 coordinating two nights of data with two sets of flats using the Keyword SESSION to select properly named files to use. Star size was reduced using Adam Block's star reduction technique which I am developing an affinity towards. The Iris is circumpolar from my location and presents ample opportunity to capture plenty of data.

Light Polluted skies
Northeast Imagers
LVAAS Astroimaging
Suburban Astrophotography
The OSC Club (One Shot Camera)
PixInsight Addicts

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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	4768671
PixInsight job	NVEABXRUKC5XD0K0M64FV6ZMNKK4IRCY
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h01m36s.675
RA (top/left)	21h02m53s.311
RA (top/right)	20h56m47s.523
RA (bottom/right)	21h00m22s.937
RA (bottom/left)	21h06m27s.746

Dec (center)	+68°09′56″.60
Dec (top/left)	+68°36′20″.50
Dec (top/right)	+68°05′20″.70
Dec (bottom/right)	+67°43′31″.20
Dec (bottom/left)	+68°14′01″.90

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NGC 7023 Iris Nebula

NGC 7023 Iris Nebula

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NGC 7023 Iris Nebula

NGC 7023 Iris Nebula

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