Shark in the Dark! (Deepan Vishal)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 24 Cep · HD210615 · HD210806 · HD211300 · HD211771 · LBN 541 · LBN 546 · LDN 1235 · The star 24 Cep · VdB149

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Shark in the Dark!

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Shark in the Dark!

The Shark Nebula, also known as LDN 1235, is a faint cloud of interstellar gas and dust in the constellation Cepheus. It's about 15 light-years long and 650 light-years away.
The Shark Nebula is not visible to the naked eye, and you won't see much through binoculars or telescopes either. It's best observed between May and December when the constellation Cepheus is highest in the sky.
The Shark Nebula is incredibly faint and very challenging to image from a city. It includes smaller dust nebulae such as:

Lynds Dark Nebula 1235
Van den Bergh 149 & 150

The Shark Nebula is located between Draco and Cassiopeia.

Details of Image Acquisition: 32 hours and 50 Minutes

L: 250 x 300s
R: 120 x 120s
G: 120 x 120s
B: 120 x 120s

Feedback and comments welcome!

Skywatcher Esprit ED Super APO Triplet
ZWO ASI2600MM Pro
ZWO ASIAIR PRO USERS
Light Polluted skies
Cloudy Nights
Suburban Astrophotography
SoCal Astrophotography
/r/astrophotography
The refractors!
PixInsight Addicts
Unique or Unusal Deep Sky Targets

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	8655931
PixInsight job	NGNFEPDWR91DIUMYN2B39YPP3IG00AZH
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h11m29s.134
RA (top/left)	22h19m18s.964
RA (top/right)	22h03m37s.340
RA (bottom/right)	22h04m20s.975
RA (bottom/left)	22h18m38s.768

Dec (center)	+73°06′22″.27
Dec (top/left)	+73°54′43″.99
Dec (top/right)	+73°54′40″.43
Dec (bottom/right)	+72°16′57″.66
Dec (bottom/left)	+72°17′01″.55

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Shark in the Dark!

Shark in the Dark!

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Shark in the Dark!

Shark in the Dark!

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