IC5146 Cocoon Nebula (Denis Dumas)

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

Finally a night with good seeing (4/5)!
I am still having issues with my flats and with my star colors. The flats used for this image were 5s exposures taken with a white napkin stretched over the telescope and with a white PowerTank LED flashlight about 2-3 meters away. Keeping the system in focus is a problem with these large temperature swings so I have a ZWO focuser arriving any day now and will automate the acquisition and focusing.

Conditions:
High of 23C during the day down to 9C overnight, so dew heaters on! Calm winds, good seeing (4/5), average transparency. Clouds started to roll in at 4:30 am. The moon set at 2:34 am so had a couple of hours of very dark skies.

Original
Final
B

B

Description: Following Masters of PixInsight workshops and applying new processing steps as I learn...

Uploaded: ...

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	5031876
PixInsight job	YADWRU6UMH1AEMWF3BBMRCBDMXJ1G0DC
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h53m28s.653
RA (top/left)	21h55m35s.490
RA (top/right)	21h51m24s.760
RA (bottom/right)	21h51m22s.937
RA (bottom/left)	21h55m31s.394

Dec (center)	+47°16′01″.44
Dec (top/left)	+47°30′03″.44
Dec (top/right)	+47°30′47″.25
Dec (bottom/right)	+47°01′50″.77
Dec (bottom/left)	+47°01′07″.37

Image Index:

Contribution Index (beta):

IC5146 Cocoon Nebula

IC5146 Cocoon Nebula

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

Image Index:

Contribution Index (beta):

IC5146 Cocoon Nebula

IC5146 Cocoon Nebula

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

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?

Delete this revision?

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