Cygnus Region in Ha (JDJ)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 18 del Cyg · 19 Cyg · 21 eta Cyg · 22 Cyg · 25 Cyg · 27 b01 Cyg · 28 b02 Cyg · 29 b03 Cyg · 34 P Cyg · 35 Cyg · 36 Cyg · 37 gam Cyg · 40 Cyg · 42 Cyg · 44 Cyg · 47 Cyg · B144 · B145 · B146 · B147 · B341 · B342 · B343 · B344 · B346 · B347 · B348 · Crescent Nebula · Cygnus · IC 1310 · And 60 more.

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Cygnus Region in Ha

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Cygnus Region in Ha

This wide field image of the Cygnus region was captured on the nights of September 21-22, 2020 using a short telephoto lens, a dual narrowband filter, and a OSC DSLR. This is image includes the H-alpha data from the red channel. The long leg of the northern cross in Cygnus runs along the diagonal of the image starting with the Gamma Cygni nebula and the bright star Sadr at the upper left, then the Crescent nebula near the center of the image, and finally the Tulip nebula.

Imaged with 85mm/F1.4 Rokinon at F/2, STC Duo Narrowband Clip Filter, and full spectrum modified Nikon D5300.

Total integration time was ~3 hours using 50 subs at ISO400 x 240 sec. Pre-processed using PixInsight Batch Pre-Processing (BPP) script. Images calibrated using darks, bias, and flats. Extracted red/green/blue channels using BatchChannelExtraction script. R, G, & B channels registered and stacked independently using StarAlighment and Integration. R channel data gives the Ha image. Averaged G & B channels using Pixelmath to generate OIII image.

R and Average of G+B channels individually post-processed in Pixinsight: Cropped, gradient removal with ABE, MLT for noise reduction, stretched using masked stretch, Curves Transformation, TGVDenoise for noise reduction, HDR transform, Local histogram transform, morphological transform to shrink stars.

Nikon Imagers
Cloudy Nights
DSLR narrowband
Suburban Astrophotography
Camera Lens Astrophotography

85mm Rokinon
Cygnus Region

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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	3999412
PixInsight job	RAL4YBSMARR734TXLONCLRDYZZSZZ9BT
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h10m52s.94
RA (top/left)	20h39m11s.13
RA (top/right)	19h41m39s.60
RA (bottom/right)	19h47m15s.59
RA (bottom/left)	20h35m25s.67

Dec (center)	+39°49′06″.10
Dec (top/left)	+45°56′14″.2
Dec (top/right)	+45°46′24″.2
Dec (bottom/right)	+33°19′02″.4
Dec (bottom/left)	+33°26′52″.1

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Cygnus Region in Ha

Cygnus Region in Ha

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Cygnus Region in Ha

Cygnus Region in Ha

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