IC 434 region
H-alpha
by Eric Girardin
Date:
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H-alpha:
Grand-Praz
FSQ-106
Paramount
STL 11000M
7 x 30 min
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Description:
IC 434, Barnard 33, Horsehead nebula
Ori
1500 light years
The rollover image is a "true color" H-alpha image
made according to the article in the December 2011 issue of Sky and Telescope, p. 70