NGC6946 Ha-RGB (Bernard DELATTRE)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Fireworks Galaxy · HD195688 · HD196085 · HD197373 · NGC 6939 · NGC 6946 · PGC 166192 · PGC 166193 · PGC 2601346 · PGC 64824 · PGC 64878

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NGC6946 Ha-RGB

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NGC6946 Ha-RGB

NGC 6946, surnommée la galaxie du Feu d'artifice, est une galaxie spirale intermédiaire vue presque de face et située à cheval sur les constellations du Cygne et de Céphée, à environ 20 millions d'années-lumière de la Voie lactée. NGC 6946 a été découverte par l'astronome germano-britannique William Herschel en 1798. Wikipédia
Distance de la Terre : 22,5 millions années-lumière
Magnitude : 9,6
Rayon : 20 000 années-lumière
Magnitude apparente (V) : 9,6
Distance : ~20 millions al
Angle de position : 57°
Constellations : Céphée, Cygne

NGC 6939 est un amas ouvert situé à environ 5 700 années-lumières de la Terre dans la constellation de Céphée. Il a été découvert par William Herschel en 1798. Une étude en 1998 montre 6 étoiles variables parmi les géantes rouges de l'amas et une autre étude de 2004 en désigne 10 de plus autour du même amas. Wikipédia

GHS Made a Substantial Difference
FastIntegration in Pixinsight
Astrophotographes (France)
PixInsight Addicts
TS-Optics or SharpStar 94EDPH
ZWO ASI1600MM/QHY163M
Short exposures DSO
The refractors!
CMOS Imagers
Imaged with N.I.N.A.

0a.Most Recent
2a. Images L_RVB
8b. Amas ouverts
Ctlg NGC
Galaxies (Ctlg PGC)

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
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	8347216
PixInsight job	OPFSK4P9APXNBC3OZ8D0XPY9H9Y2BEKT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h33m21s.34
RA (top/left)	20h40m53s.64
RA (top/right)	20h27m22s.68
RA (bottom/right)	20h26m04s.23
RA (bottom/left)	20h39m04s.40

Dec (center)	+60°23′12″.3
Dec (top/left)	+60°54′54″.0
Dec (top/right)	+61°09′26″.1
Dec (bottom/right)	+59°49′54″.7
Dec (bottom/left)	+59°35′45″.6

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NGC6946 Ha-RGB

NGC6946 Ha-RGB

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NGC6946 Ha-RGB

NGC6946 Ha-RGB

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