IC 1396 - Elephant trunk Nebula (Alexkid)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: VdB142

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IC 1396 - Elephant trunk Nebula

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IC 1396 - Elephant trunk Nebula

Cette nébuleuse fut découverte par Edward Emerson Barnard à la fin du 19ème siècle. Située à 2 610 années-lumière, cette région d'hydrogène ionisé englobe un amas ouvert dénommé Trumpler 37. Cet amas comporte quelques astres très jeunes, des géantes bleues âgées de seulement 1 million d'années, faisant partie de l'association Cepheus OB2. Parmi elle se distingue SAO 33626 de 5,97m, qui est une supergéante de type O5. Située au centre de l'amas, elle est également appelée Struve 2816 à cause de sa nature binaire.

Sa voisine, PPM 39705 de 7,92m, est une étoile de type B0 située à 12‚d'arc. L'étendue gazeuse de IC 1396 englobe un grand nombre de nébuleuses

obscures dont une assez célèbre : Van den Bergh 142 (VDB 142) appelée aussi "la Trompe d'Eléphant".

This nebula was discovered by Edward Emerson Barnard at the end of the 19th century. Located at 2,610 light years, this region of ionized hydrogen encompasses an open cluster called Trumpler 37. This cluster includes a few very young stars, blue giants only 1 million years old, part of the Cepheus OB2 association . Among her stands out SAO 33626 of 5.97m, which is an O5 type supergiant. Located in the center of the cluster, it is also called Struve 2816 because of its binary nature.

Its neighbor, PPM 39705 of 7.92m, is a B0 type star located at arc 12. The gaseous expanse of IC 1396 encompasses a large number of nebulae

obscure including a fairly famous one: Van den Bergh 142 (VDB 142) also called "the Elephant's Trunk".

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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	...
Astrometry.net job	4666901
PixInsight job	FCZKHIIJ5YLTREI0OFPBB41UHF2HWU3D
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h34m39s.790
RA (top/left)	21h37m29s.141
RA (top/right)	21h37m27s.890
RA (bottom/right)	21h31m48s.511
RA (bottom/left)	21h31m54s.688

Dec (center)	+57°31′18″.86
Dec (top/left)	+57°18′21″.19
Dec (top/right)	+57°44′58″.70
Dec (bottom/right)	+57°44′02″.45
Dec (bottom/left)	+57°17′26″.11

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IC 1396 - Elephant trunk Nebula

IC 1396 - Elephant trunk Nebula

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IC 1396 - Elephant trunk Nebula

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