NGC 6946, Fireworks galaxy, NGC 6939 (Vladimir Machek)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Fireworks Galaxy · NGC 6939 · NGC 6946

NGC 6946, Fireworks galaxy, NGC 6939, Vladimir Machek

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NGC 6946, Fireworks galaxy, NGC 6939

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NGC 6946, Fireworks galaxy, NGC 6939

NGC 6946, Fireworks galaxy, NGC 6939 DESCRIPTION: NGC 6946 + NGC 6939, image processing via star less version - StarXterminator.

OBJECT: NGC 6946, Fireworks Galaxy (in the center), Constellation Cygnus / Cepheus, apparent magnitude 9.6, apparent dimension 16’ x 11’. NGC 6939 (top left), Constellation Cepheus, apparent magnitude 7.8, apparent dimension 10’.

CALIBRATION - Center of image: RA 20h 35m, DEC 60° 10’, FOV 1,94°x 1,29°, Field radius 1,16°, Pixel scale 1,81 arcsec/px, Orientation Up is 90,8° E of N, Image size 3840 x 2560 px.

GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor Z 500/5,6, Astronomic UV/IR/L2 Clip in filter, Rollei Astroklar light pollution filter, fine focus rings, tracking mount iOptron CEM60EC - 3 star alignment, no auto guiding.

ACQUISITION: August 25, 2022, Struz, CZ, Subexposure 180s, f 5,6, ISO 1600, Interval 15 s, RAW-L, Lights 31x, Darks 20x, Bias 20x, Flats 20x, DarkFlats 10x. Total exposure time 93 min. Night, Astronomical twilight, no wind, 15° C, Backyard - Light pollution - Bortle 5.

STACKING AND POST PROCESSING: AstroPixelProcessor (stacking, background neutralisation, light pollution removal, calibrate background and stars colours) , Adobe Photoshop CC 2023, StarXTerminator, Astronomy tool for PS.

DSLR/Mirrorless Imagers from the World
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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	Basic success
Started	...
Astrometry.net job	6722015
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 6946, Fireworks galaxy, NGC 6939

NGC 6946, Fireworks galaxy, NGC 6939

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NGC 6946, Fireworks galaxy, NGC 6939

NGC 6946, Fireworks galaxy, NGC 6939

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