NGC 7023 Iris Nebula - Just a couple of hours (John Jennings)

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

NGC 7023 Iris Nebula - Just a couple of hours

Shot from a remote observatory in dark skies. Pretty happy with just a couple of hours of integration. I really love the ease of use of Color CMOS cameras. Stacked in ASTAP

HISTORY   1 Stacking method SIGMA CLIP AVERAGE
HISTORY   2 De-mosaic bayer pattern used RGGB
HISTORY   3 Colour conversion: AstroSimple interpolation.
EXPTIME    = 7800 / Total luminance exposure time in seconds.
LUM_EXP    = 600 / Average luminance exposure time.
LUM_CNT    = 13 / Luminance images combined.
LUM_DARK   = 20 / Darks used for luminance.
LUM_FLAT   = 30 / Flats used for luminance.
LUM_BIAS   = 25 / Flat-darks used for luminance.
LUM_TEMP   = -5 / Set temperature used for luminance.

SOFAR Nebula

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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	4987997
PixInsight job	RLJG5DX5NM1NSKD0EF2BSU8ZU7TN35K4
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h01m34s.505
RA (top/left)	21h08m13s.957
RA (top/right)	20h54m59s.999
RA (bottom/right)	20h55m08s.555
RA (bottom/left)	21h07m55s.624

Dec (center)	+68°10′15″.26
Dec (top/left)	+68°33′41″.46
Dec (top/right)	+68°34′21″.50
Dec (bottom/right)	+67°45′50″.51
Dec (bottom/left)	+67°45′10″.54

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NGC 7023 Iris Nebula - Just a couple of hours

NGC 7023 Iris Nebula - Just a couple of hours

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NGC 7023 Iris Nebula - Just a couple of hours

NGC 7023 Iris Nebula - Just a couple of hours

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