The Details
Object
Barnard's Loop in Orion
Optics
180mm Nikon EDAF lens
Platform
Astro-Physics 1200 GTO
Camera
SBIG ST-10XME
Filters
Custom Scientific 3nm Hydrogen-Alpha
Date
13 and 14 December 2004
Location
Mount Wilson Observatory - Mount Wilson, CA
Exposure
Ha 2 x 9 x 1200 sec, 1x1 bin, 2-pane mosaic
Software
Maxim DL/CCD, Registar, Photoshop
Orientation
Field of View: 08°28’ x 3°08’ centered on RA 05h54m11s DEC -02 °43’29”. North angle 0 °; east 90° CCW from north
Notes
E.E. Barnard discovered this vast and expanding ionized hydrogen cloud by long exposure photographs in 1895. The gas is being blown out and illuminated by very hot nearby O and B stars in Orion.

 

 

 

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