IC 5146, the Cocoon Nebula in Cygnus (Walter Leonhard Schramböck)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B168 · Cocoon Nebula · IC 5146 · LBN 424 · LDN 1055 · Sh2-125 · VdB147

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IC 5146, the Cocoon Nebula in Cygnus

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Powered byPixInsight

IC 5146, the Cocoon Nebula in Cygnus

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

The starcluster Collinder 470 is involved in clouds of emission/reflection and dark nebulae. The dark nebula Banard 168 forms a dark lane, surrounding the cluster and projecting westwards, forming the appearance of a trail behind the Cocoon.
IC 5146 is a stellar nursery where star-formation is ongoing.

I hesitated for a long time to photograph this nebula because you see so many pictures of it. But I was caught unprepared by several clear nights, so I decided on this property without further ado and I haven't regretted it.

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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.
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	8470042
PixInsight job	J8UUTX7XQHAB6712EOBNI4Y78HMGIZWK
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h53m27s.655
RA (top/left)	21h55m51s.685
RA (top/right)	21h56m47s.790
RA (bottom/right)	21h51m00s.500
RA (bottom/left)	21h50m11s.554

Dec (center)	+47°15′33″.89
Dec (top/left)	+46°42′05″.50
Dec (top/right)	+47°39′51″.15
Dec (bottom/right)	+47°48′51″.63
Dec (bottom/left)	+46°50′51″.35

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IC 5146, the Cocoon Nebula in Cygnus

IC 5146, the Cocoon Nebula in Cygnus

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IC 5146, the Cocoon Nebula in Cygnus

IC 5146, the Cocoon Nebula in Cygnus

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