Barnard 343 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B343

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Barnard 343

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Barnard 343

This object is a dark nebula located in the constellation of Cygnus at a declination of +40 degrees. Barnard 343 belongs to the Gamma Cygni Complex of clouds about 2,000 light-years away. Barnard is the main dark nebula at the center of the image and is about 10 arc-minutes long, which at that distance corresponds to an actual length of almost 10 light years.

I like the combination of the many dark nebulae, the colorful star field, the reddish emission regions, and particularly the interesting thin curving structures which subtly wind their way through the background. I am not exactly sure what these are. My best guess is that they are remnants of the cloud which have been shaped and eroded into pillar-like formations by the light from nearby stars, akin to the Pillars of Creation, but unlike that formation, the orientation of these structures is not aligned in any specific direction.

Dark Nebula
Takahashi Refractors
ZWO ASI183/QHY183
Unique or Unusal Deep Sky Targets
The refractors!
Cloudy Nights

Barnard Catalog (140/369)
Dark Nebulae
HII-Dominated Nebulae

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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	3115916
PixInsight job	10WR8VVQWI0DD9JW8H0PN94CT97JGHSH
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h13m27s.510
RA (top/left)	20h11m29s.416
RA (top/right)	20h15m20s.375
RA (bottom/right)	20h15m25s.512
RA (bottom/left)	20h11m32s.869

Dec (center)	+40°15′28″.66
Dec (top/left)	+40°01′14″.74
Dec (top/right)	+40°00′01″.52
Dec (bottom/right)	+40°29′35″.70
Dec (bottom/left)	+40°30′48″.82

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Barnard 343

Barnard 343

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Barnard 343

Barnard 343

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