IC5146 Cocoon Nebula (Jerry Macon)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B168 · Cocoon nebula · IC 5146 · PGC 167590 · PGC 167593 · PGC 167597 · Sh2-125 · VdB147

Powered byPixInsight

IC5146 Cocoon Nebula

Powered byPixInsight

IC5146 Cocoon Nebula

Imaged on nights of 2018-10-19, 2018-10-20, 2018-21-19, 2018-11-25, 2018-11-26.

The RGB were taken on the AG12+ASI1600MM at .70 asec/pix, the L on TV127is+ASI183MM at .75 asec/pix, and RGB on AG12+ASI183MM at .43 asec/pix. Using L from the TV NP127is refractor effectively eliminates the spikes from the AG12.

IC 5146 Cocoon Nebula is a reflection/emission nebula object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. It shines at magnitude +10.0. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years. When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon. (Wikipedia)

Planetary Nebulae

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	2478659
PixInsight job	93HABU9RGLS5CN4SLI132QE7U7ROPC72
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h53m28s.936
RA (top/left)	21h51m35s.300
RA (top/right)	21h55m16s.610
RA (bottom/right)	21h55m23s.810
RA (bottom/left)	21h51m40s.881

Dec (center)	+47°16′07″.90
Dec (top/left)	+47°04′04″.95
Dec (top/right)	+47°02′23″.54
Dec (bottom/right)	+47°28′03″.21
Dec (bottom/left)	+47°29′44″.55

Image Index:

Contribution Index (beta):

IC5146 Cocoon Nebula

IC5146 Cocoon Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these collections

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

IC5146 Cocoon Nebula

IC5146 Cocoon Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these collections

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information