Sh2 125 The Cocoon Background (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B168 · Cocoon Nebula · HD207529 · HD207608 · HD207886 · HD208362 · HD208728 · IC 5146 · LBN 424 · LDN 1042 · LDN 1045 · LDN 1047 · LDN 1055 · Sh2-125 · VdB147

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Sh2 125 The Cocoon Background

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Sh2 125 The Cocoon Background

Repeating one more of the Sharpless2 Group to see what my new CMOS system can find with a deeper look at the H-alpha in the background environs....

Done before a few times:

IC 5146 Cocoon Nebula a Reflection/Emission Nebula in Cygnus

IC5146 Cocoon Nebula RGB

Discussion of GHS aspects of processing:

GHS Forum Discussion

From GalaxyMap:

The Cocoon nebula is associated with the star cluster IC 5146 and is ionised by the B0 V class star BD +46 3474 according to Avedisova.

GENERAL NOTE ON SHARPLESS2 OBJECTS>>>>>>>>>>>>>

There are 313 Sh2 objects. All now imaged.

This is my collection:

Sharpless2

Wide-Angle Hydrogen Alpha Nikon Image Sh2 79-171

Please note there is also a Sharpless2 Group with now more than 2700 examples.

Sharpless2 Group

Other useful links include:

Gary Imm's Collection

GalaxyMap's Collection

The Sharpless Catalog

The MDW H-alpha Sky Survey

Reiner Vogel's detailed observing catalog

Hope you enjoy these obscure but interesting objects...

Cloudy Nights

Sharpless2 Objects

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	6167870
PixInsight job	4J7KSN1AHT7AD09DCQN9G21C6CPNKUBD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h53m25s.106
RA (top/left)	21h47m10s.267
RA (top/right)	21h59m35s.937
RA (bottom/right)	21h59m50s.238
RA (bottom/left)	21h47m04s.403

Dec (center)	+47°15′41″.33
Dec (top/left)	+46°33′16″.15
Dec (top/right)	+46°32′13″.68
Dec (bottom/right)	+47°56′46″.30
Dec (bottom/left)	+47°57′55″.20

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Sh2 125 The Cocoon Background

Sh2 125 The Cocoon Background

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Sh2 125 The Cocoon Background

Sh2 125 The Cocoon Background

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