IC 1396 - The Elephant's Trunk Nebula (Monty Chandler)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B161 · B163 · B365 · B367 · HD205196 · HD205510 · HD205948 · HD206081 · HD206183 · HD206267 · HD206482 · HD206773 · HD207086 · HD239710 · HD239712 · HD239724 · HD239725 · HD239727 · HD239729 · HD239748 · HD239767 · IC 1396 · LBN 451 · LBN 452 · LBN 455 · LBN 456 · LBN 457 · LDN · LDN 1085 · LDN 1086 · And 31 more.

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IC 1396 - The Elephant's Trunk Nebula

Link: https://montychandler.smugmug.com/Astrophotography/Nebula/i-cGqhfmZ/A

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IC 1396 - The Elephant's Trunk Nebula

Link: https://montychandler.smugmug.com/Astrophotography/Nebula/i-cGqhfmZ/A

The IC 1396 region is filled with beautiful dark nebula structures. The one towards the center of the picture, just to the left of the bright star. For obvious reasons it's referred to as The Elephant's Trunk Nebula. It is a concentration of interstellar gas and dust within the much larger ionized gas region of IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth.

The piece of the nebula shown here is the dark, dense globule IC 1396A; it is commonly called the Elephant's Trunk nebula because of its appearance at visible light wavelengths, where there is a dark patch with a bright, sinuous rim.

The bright rim is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive star (HD 206267) that is just to the east of IC 1396A. The entire IC 1396 region is ionized by the massive star, except for dense globules that can protect themselves from the star's harsh ultraviolet rays.

The Elephant's Trunk Nebula is now 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 (but still young, a couple of million years, by the standards of stars, which live for billions of years) stars are present in a small, circular cavity in the head of the globule. Winds from these young stars may have emptied the cavity.

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Status	Advanced success
Started	...
Astrometry.net job	6540308
PixInsight job	338UOU048WB4JKVCTYCD68QDJ575TPS8
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h39m26s.95
RA (top/left)	21h30m53s.92
RA (top/right)	21h51m55s.47
RA (bottom/right)	21h48m40s.45
RA (bottom/left)	21h26m37s.20

Dec (center)	+57°35′30″.6
Dec (top/left)	+56°14′26″.5
Dec (top/right)	+56°59′24″.9
Dec (bottom/right)	+58°54′15″.2
Dec (bottom/left)	+58°06′48″.5

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IC 1396 - The Elephant's Trunk Nebula

IC 1396 - The Elephant's Trunk Nebula

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IC 1396 - The Elephant's Trunk Nebula

IC 1396 - The Elephant's Trunk Nebula

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