NGC 6946 & NGC 6939 (Harold Freckhaus)

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

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NGC 6946 & NGC 6939

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NGC 6946 & NGC 6939

Session du 14 juin 2021 à 21h49 UTC au 15 juin 2021 à 00h43 UTC
Une galaxie et un amas voisin bien connus de tous les observateurs du ciel boréal: la galaxie du Feu d'Artifice (NGC 6946) et l'amas des Oies Volantes / amas du Buisson Fantôme (NGC 6939).
Vieilles acquisitions qui m'avaient servi pour tester un script PixInsight et que j'avais oublié dans un répertoire de travail.

Bon Ciel à toutes et à tous
Harold

_______________________________________________________________________________________
Session from June 14, 2021 9:49 p.m. UTC to June 15, 2021 00:43 a.m. UTC
A galaxy and a neighboring cluster, well known to all observers of the northern sky: the Fireworks galaxy (NGC 6946) and the Silk Fan Cluster (NGC 6939).
Old acquisitions that I used to test a PixInsight script and that I had forgotten in a working directory somewhere in my disk drive.

CS to All
Harold

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	8997998
PixInsight job	BRD7Z2OYU9JVALRGZKB1LSDHJF47ORM0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h33m15s.59
RA (top/left)	20h27m56s.30
RA (top/right)	20h35m10s.92
RA (bottom/right)	20h38m32s.00
RA (bottom/left)	20h31m15s.34

Dec (center)	+60°24′21″.10
Dec (top/left)	+60°30′50″.4
Dec (top/right)	+59°47′16″.6
Dec (bottom/right)	+60°17′08″.5
Dec (bottom/left)	+61°01′28″.2

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NGC 6946 & NGC 6939

NGC 6946 & NGC 6939

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NGC 6946 & NGC 6939

NGC 6946 & NGC 6939

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