The Elephant’s Trunk Nebula (Kevan Noble)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B160 · B161 · B162 · B163 · B365 · B366 · B367 · Erakis · Erakis (μ Cep) · HD204827 · HD205113 · HD205196 · HD205510 · HD205917 · HD205948 · HD206081 · HD206183 · HD206267 · HD206482 · HD206773 · HD206842 · HD207086 · HD239676 · HD239706 · HD239710 · HD239712 · HD239724 · HD239725 · HD239727 · HD239729 · And 55 more.

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The Elephant’s Trunk Nebula

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The Elephant’s Trunk Nebula

The Elephant’s Trunk Nebula is a dense region of dust and gas found within the considerably larger star forming region IC 1396 in Cepheus constellation. Designated IC 1396A, the elongated globule of dust and gas was named the Elephant’s Trunk because it resembles an elephant’s head and trunk at visible wavelengths, appearing as a dark patch with a bright winding rim. It is located at a distance of 2,400 light years from Earth.

Taken on 30,31 May, 1,5,6,12,13,14 June 2021Lunar 78%, 68%, 56%, 18%, 12%, 6%, 12%,18% Sky Quality 19.67 Magnitude Class 5 Bortle

13.5hrs out of 16.5hrs for the best quality, 600 second subs equally of Sii, Ha, and Oiii.
30 x Darks, Flats and Bias
Astro Pixel Processor, Pixinsight, Photoshop 2021

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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
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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	...
PixInsight job	ZUXLMOWQTI0WTWS2XN1IYTD99X36MHSQ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h39m21s.60
RA (top/left)	21h50m46s.85
RA (top/right)	21h49m04s.95
RA (bottom/right)	21h26m39s.70
RA (bottom/left)	21h30m44s.29

Dec (center)	+57°32′04″.5
Dec (top/left)	+55°34′39″.8
Dec (top/right)	+59°42′06″.3
Dec (bottom/right)	+59°25′11″.6
Dec (bottom/left)	+55°19′23″.10

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The Elephant’s Trunk Nebula

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