IC 5146 the Cocoon Nebula (Frank Colosimo)

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

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IC 5146 the Cocoon Nebula

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IC 5146 the Cocoon Nebula

IC 5146, also known as the Cocoon nebula, is a magnitude 10 reflection/emission nebula in Cygnus. It is about 3300 light years away and is around 15 light years across. Some data was gathered in 2010 and more in September of 2019

Date: Sep 2010 and Sep 2019

Location: New Ringgold PA

Optics: Hyperion 12.5 inch f/9 2532mm FL and Celestron EdgeHD-11 at 2760mm FL

Mount: Paramount ME and Paramount MX

Camera/Filters: SBIG STL 11000 camera Baader filters

Guiding: integral guiding chip controlled by Maxim CCD

Exposure: LRGBHa: Luminance: 54x10 minutes unbinned; RGBHa: Bin2 - R-64x5 min, G-62x5 min, B-68x5 min, HA-37x10 min 31.3 hours 285 subs at average of 396 sec

Processing: Image acquisition using CCD Autopilot. Initial processing was done using Maxim DL with subsequent processing with Photoshop. Some HA was added to the Red channel.

Northeast Imagers
Cloudy Nights
Schmidt-Cassegrain Telescope (SCT) Imagers

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	3013987
PixInsight job	POW3LX8V7R70VZWSFISANODYAEYAARYP
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h53m31s.733
RA (top/left)	21h55m57s.209
RA (top/right)	21h53m32s.499
RA (bottom/right)	21h51m04s.866
RA (bottom/left)	21h53m30s.965

Dec (center)	+47°16′19″.70
Dec (top/left)	+47°05′43″.42
Dec (top/right)	+47°43′19″.20
Dec (bottom/right)	+47°26′39″.65
Dec (bottom/left)	+46°49′23″.76

Image Index:

Contribution Index (beta):

IC 5146 the Cocoon Nebula

IC 5146 the Cocoon Nebula

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Image Index:

Contribution Index (beta):

IC 5146 the Cocoon Nebula

IC 5146 the Cocoon Nebula

Equipment

Acquisition details

Description

Comments

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In these public groups

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