IC1396 Elephant's Trunk (niteman1946)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep)

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IC1396 Elephant's Trunk

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IC1396 Elephant's Trunk

The Elephant's Trunk nebula is a concentration of interstellar gas and dust in the star cluster IC 1396 – an ionized gas region located in Cepheus about 2,400 light years away from Earth. The piece of the nebula shown here is the dark, dense globule IC 1396A; commonly called the Elephant's Trunk nebula because of its appearance at visible light wavelengths, where there is a dark patch and bright, sinuous rim. The bright rim is the surface of the dense cloud illuminated and ionized by a very bright, massive star, just to the west (right) of IC 1396A.

The Elephant's Trunk nebula is thought to be a site of star formation, containing several very young (less than 100,000 yr) stars that were discovered in infrared images in 2003. Two older stars are present in a small, circular cavity in the head of the globule. Winds from these young stars may have emptied the cavity. (Source Wikipedia)

The image was captured with the Meade 12"LX200, using the Atik 383L+ mono (at F6.3).

CCD: A total of 16 subs with binning 1x1 and -10C at 10 minutes each (2.67 hr) on 12/04.

Processing was done with PixInsight. This is a very slight crop, and North is up.

This was simply a luminance image sans any filters, and was really a "throw-away" effort. But it actually came out pretty good. To do it right with this scope (small field of view and composition issues), I really need to try to mosaic multiple images. Not sure that I will.

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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	Basic success
Started	...
Astrometry.net job	7395985
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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IC1396 Elephant's Trunk

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