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IC 1396A

Elephant's Trunk Nebula

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(Click on image to view annotated version. To view larger format click on the text below the image.)

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Technical details:

Location / Date: Outside of Kopparberg, Västmanland, Sweden / 2018-Oktober

Optics: Orion Optics UK AG12

Mount: 10 Micron GM1000 HPS (Unguided)

Camera: Atik One 6.0 with Astrodon 1,25" RGB Gen 2 E-Series Filters and 5nm H-Alpha Narrowband Filter

Exposure:

Ha:91 x 300s bin1x1,

R:25 x 180s bin2x2,

G:20 x 180s bin2x2,

B:20 x 180s bin2x2

(cumulative exposure time is 10 hours and 55 minutes)

Processing: Pixinsight and Photoshop

 

Image details:

The Elephant's Trunk nebula is a concentration of interstellar gas and dust within the much larger ionized gas region 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 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. (Information from Wikipedia)

 
 

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