IC 5146 Cocoon Nebula - RGB (Richard H)

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

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IC 5146 Cocoon Nebula - RGB

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IC 5146 Cocoon Nebula - RGB

The Cocoon Nebula, IC 5146 is located in the Constellation of Cygnus. This target was imaged over 5 nights with 20% of the frames thrown out but still ended up with 124 good frames to process and integrate into this RGB image with a SynthL luminance image processed and re-integrated into final

Imaging dates: 7/31/19 - 8/4/19

Red 48 x240s each with gain of 100 total 3.2 hours

Grn 43 x 240s each with gain of 95 total 2.9 hours

Blue 41 x 240s each with gain of 100 total 2.7 hours

This target is located is in a very dense star field. I reduced some of the overwhelming star impact but due to exposure length, many are still present. A revision is in the works.

Original
Final
B

B

Description: Reprocessed this 2019 data set with updated processing methods. Extracted a SynthL from RGB image, processed and reintegrated to make an LRGB image.

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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	4697633
PixInsight job	R3Y9KBJWT8EOO7ILEQ8G5BVDTXZ2IWNM
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h53m25s.67
RA (top/left)	21h54m54s.56
RA (top/right)	21h48m17s.16
RA (bottom/right)	21h51m59s.43
RA (bottom/left)	21h58m34s.50

Dec (center)	+47°16′22″.1
Dec (top/left)	+48°06′30″.3
Dec (top/right)	+47°16′57″.5
Dec (bottom/right)	+46°26′09″.4
Dec (bottom/left)	+47°14′53″.10

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IC 5146 Cocoon Nebula - RGB

IC 5146 Cocoon Nebula - RGB

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Image Index:

Contribution Index (beta):

IC 5146 Cocoon Nebula - RGB

IC 5146 Cocoon Nebula - RGB

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

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