Lobster Claw Nebula SH2 157 (Constantino Rodas Cordón)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD219286 · HD219460 · HD240233 · HD240244 · HD240245 · HD240250 · HD240252 · LBN 533 · LBN 536 · LBN 537 · LBN 540 · Sh2-157

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Lobster Claw Nebula SH2 157

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Lobster Claw Nebula SH2 157

Nebula SH2-157, also known as the Lobster Claw Nebula, is an emission nebula located about 11,000 light-years away in the constellation Cassiopeia (between Cassiopeia and Cepheus). The red/orange parts of the nebula are made up of strong HII regions, dominated by the yellow part of the nebula, which is a very large HII region. The blue colored regions are mainly due to light emission from molecular oxygen.

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
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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	...
PixInsight job	1NU6V3134BI2XSC1K3HDIJ6VUZ1MVGTA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h15m25s.42
RA (top/left)	23h19m08s.51
RA (top/right)	23h17m20s.30
RA (bottom/right)	23h11m34s.20
RA (bottom/left)	23h13m34s.92

Dec (center)	+60°10′04″.7
Dec (top/left)	+59°36′18″.4
Dec (top/right)	+60°51′37″.4
Dec (bottom/right)	+60°43′31″.8
Dec (bottom/left)	+59°28′26″.9

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Lobster Claw Nebula SH2 157

Lobster Claw Nebula SH2 157

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Lobster Claw Nebula SH2 157

Lobster Claw Nebula SH2 157

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