SH2-119 - Clamshell Nebula (David Grant)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 68 A Cyg · HD201456 · HD201504 · HD201749 · HD202124 · HD202253 · HD202568 · HD202617 · HD202710 · HD202720 · HD202810 · HD202862 · HD203578 · HD204050 · HD204262 · HD204375 · HD204722 · LBN 383 · LBN 389 · LBN 390 · LBN 391 · LBN 393 · LBN 400 · LBN 401 · LBN 402 · LBN 404 · LDN 942 · LDN 943 · LDN 944 · LDN 946 · And 11 more.

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SH2-119 - Clamshell Nebula

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SH2-119 - Clamshell Nebula

SH2-119 is a bright emission nebula located in the Cygnus constellation, about 2° east of the North America Nebula. It features several dust lanes as well as a vast star field.

SH2-119 is a lesser known target. Between the vast amount of stars and being so close to the famous North America Nebula, I think it tends to get overlooked.

I struggled with editing this image. I usually try to reduce the total stars in my image, which allows the nebulosity to stand out more. With this image though, I felt like the stars were just as important as the nebulosity itself, so I went against my normal processing and kept them intact. It does take away from the nebulosity, but the sheer number of stars is amazing in its own way.

At 32 hours of total integration, this is by far the longest image I've ever taken.

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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
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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	5065735
PixInsight job	HCNVTHN4VMGAKMT7L4WW00NGNSPT29SO
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h18m42s.22
RA (top/left)	21h31m12s.60
RA (top/right)	21h21m52s.50
RA (bottom/right)	21h06m19s.47
RA (bottom/left)	21h15m45s.32

Dec (center)	+43°53′32″.10
Dec (top/left)	+44°10′29″.1
Dec (top/right)	+46°05′13″.8
Dec (bottom/right)	+43°31′37″.3
Dec (bottom/left)	+41°41′23″.9

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SH2-119 - Clamshell Nebula

SH2-119 - Clamshell Nebula

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SH2-119 - Clamshell Nebula

SH2-119 - Clamshell Nebula

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