The Details
Object
IC 5146 The Cocoon Nebula in Cygnus
Optics
12.5" RCOS Ritchey-Chretien at f/6.9
Platform
Astro-Physics 1200 GTO
Camera
SBIG ST-10XME
Filters
Custom Scientific 3nm Hydrogen-Alpha
Date
14 June 2004
Location
Mount Wilson Observatory - Mount Wilson, CA
Exposure
Ha 8 x 1800 sec, 1x1 bin
Software
Maxim DL/CCD, Registar, Photoshop CS
Orientation
Field of View: 20'04" x 14'00" centered on RA 21h53m25s
DEC 47°15’43” (2000.0) . North angle 124.40°; east 90° CCW from north
Notes
IC 5146, more familiarly known as the Cocoon Nebula, is located about 4,000 light years from earth in the direction of the constellation Cygnus the Swan. An open star cluster nursery is seen in the middle of this nebula with its brightest star being a massive youngster at about 100,000 years old. This bright star provides most of the energy responsible for the emitted and reflected light from this nebula.

 

 

 

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No reproduction of these images are permitted without prior approval of the author.