Barnard Loop
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The Barnard Loop (Sh2-276) is an enormous nebula that go through all the Orion constellation. In this image there is only the brightest part. The comparison with the HorseHead Nebula let you know how dim is it. In this image it's also visible the M78 nebula, a little above the center of the image.
 
Technical Data
Optics Photographical objective
Focal Lenght 200 mm
Focal Ratio f/5,6
Exposure Time 30 min exposure
Film Kodak PJ-400
Developement sensibility 400 ISO
Location Piani dell'Avaro (BG, on the Italian Alps) at 1700m
Date and time of exposure start 24 december 2000, 1.40 UT
Mount Meade 8"
Tracking ST4
Notes -

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