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Hemisphere:  Northern
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Elephant's Trunk nebula, 



    
        

            jreese
Elephant's Trunk nebula
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Elephant's Trunk nebula

Technical card

Imaging telescopes or lenses: ED80

Imaging cameras: Atik 428EX Mono

Mounts: Orion Sirius EQ-G

Guiding telescopes or lenses: Orion USA 50mm Finder / Guider

Guiding cameras: Orion StarShoot AutoGuider

Software: EQMOD  ·  PHD guiding  ·  Cartes du Ciel  ·  Nebulosity  ·  PixInsight

Filters: Baader OIII 8.5nm 1.25"  ·  Baader Ha 1.25" Filter

Accessory: Xagyl Comm 1.25" Ultra-Thin Filter Wheel


Dates:July 5, 2013

Frames:
Baader Ha 1.25" Filter: 8x900" bin 1x1
Baader OIII 8.5nm 1.25": 5x1200" bin 2x2

Integration: 3.7 hours

Avg. Moon age: 27.03 days

Avg. Moon phase: 6.91%

Bortle Dark-Sky Scale: 6.00


Basic astrometry details

Astrometry.net job: 85870

RA center: 21h 35' 53"

DEC center: +57° 32' 27"

Pixel scale: 1.563 arcsec/pixel

Orientation: -115.145 degrees

Field radius: 0.501 degrees


Resolution: 1845x1386

Description

The Elephant's Trunk nebula (located in the constellation Cepheus about 2,400 light years away) 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.

Comments

Author

jreese
jreese
License: None (All rights reserved)
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Elephant's Trunk nebula, 



    
        

            jreese