Garnet star and Elephant trunk nebula (IC 1396) (stalv0812)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B161 · B163 · B365 · B367 · Erakis · Erakis (μ Cep) · IC 1396 · LBN 451 · LBN 452 · LBN 455 · LBN 456 · LBN 457 · LDN · LDN 1085 · LDN 1087 · LDN 1090 · LDN 1092 · LDN 1093 · LDN 1096 · LDN 1098 · LDN 1099 · LDN 1101 · LDN 1102 · LDN 1103 · LDN 1104 · LDN 1105 · LDN 1106 · LDN 1110 · LDN 1111 · LDN 1112 · And 20 more.

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Garnet star and Elephant trunk nebula (IC 1396)

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Garnet star and Elephant trunk nebula (IC 1396)

Mu Cephei, commonly known as the Garnet Star, is one of the largest and most luminous stars known. It's named "Garnet Star" because of its deep red color, which is reminiscent of the garnet gemstone. This color is indicative of its relatively cool surface temperature. The star is nearing the end of its life and will eventually explode as a supernova.

The Elephant Trunk Nebula is a concentration of interstellar gas and dust within the larger ionized gas region IC 1396. The "trunk" portion of the nebula is a dense region of gas and dust, which appears as a dark column against the brighter background of the nebula. This region is a site of active star formation, and young stars within the trunk emit intense ultraviolet light that causes the surrounding gas to glow. The shape of the nebula, resembling an elephant's trunk, gives it its name.

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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	Advanced success
Started	...
Astrometry.net job	8277629
PixInsight job	Y32MM4OCML4XK3O05LVG6CZQC06CHXW2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h39m36s.41
RA (top/left)	21h33m24s.47
RA (top/right)	21h49m45s.53
RA (bottom/right)	21h46m17s.89
RA (bottom/left)	21h28m57s.63

Dec (center)	+57°47′13″.3
Dec (top/left)	+56°23′29″.2
Dec (top/right)	+56°54′11″.8
Dec (bottom/right)	+59°09′44″.5
Dec (bottom/left)	+58°37′04″.2

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Garnet star and Elephant trunk nebula (IC 1396)

Garnet star and Elephant trunk nebula (IC 1396)

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Image Index:

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Garnet star and Elephant trunk nebula (IC 1396)

Garnet star and Elephant trunk nebula (IC 1396)

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