Sh2-158 in SHO (Robert H. Kutner)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: MQ J231308.90+614129.2 · NGC 7538 · Sh2-158 · Sh2-159 · Sh2-161

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Sh2-158 in SHO

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Sh2-158 in SHO

Acquired multiple frames over the past month for all three channels, ~120 x 300s images @ -10c & 100g (50g for Oiii), 1x1 bin, ~90% were usable for Ha, ~70% for Sii, & ~95% for Oiii.

Blink / Subframe Select, Calibrated (100 Dark, 60 Flat, 100 Bias), Star Aligned all images with PixInsight. Used the Normalized Scale Gradient for integration.

For Ha, Sii, & Oiii channels: Dynamic Cropped, TGV, MMT (& duplicated the Ha here for the Lum), EZ Soft Stretch, and PixelMath Combine with:
R- Oiii*Sii + ~Oiii*(.1*Sii+.9*Ha)
G- Ha*(0.7*Ha+0.3*Oiii) + ~Ha*Oiii
B- Oiii*Oiii + ~Oiii*(.3*Sii+.7*Oiii)

Dyn Background Extract, Background Nut, PCC, and ColorCal

The duplicated Ha -> Lum was Dynamic Cropped, EZ Noise'd, Mask Stretched, STF Stretched, HDR, DSE, LHT, MMT, EZStar Reduction, and LRGB Combined with the Channel combined SHO image.

The image was Curves modified w/ masks, Resampled, and Annotated.

Please Enjoy!

Cloudy Nights

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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	6569122
PixInsight job	XFRLGLFZJ715EGJQHTGHPTLH7KQUMBBY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h15m06s.231
RA (top/left)	23h10m15s.409
RA (top/right)	23h14m25s.780
RA (bottom/right)	23h19m50s.203
RA (bottom/left)	23h15m48s.286

Dec (center)	+61°35′27″.44
Dec (top/left)	+61°56′37″.16
Dec (top/right)	+60°55′20″.47
Dec (bottom/right)	+61°13′40″.12
Dec (bottom/left)	+62°15′26″.16

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Sh2-158 in SHO

Sh2-158 in SHO

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Sh2-158 in SHO

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