Gueri & Fred's astronomy

 

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Gamma Cygnus and NGC 7000 in H-Alpha

Lens : Nikkor 50 mm 1.4 used @ 2

Focal length :50 mm 

Film : TP 2415 Hyper

Exposure : 90 min

Filter : Lumicon H-Alpha

Date : August 11th 2004

All pictures are copyright Frederic Pertuisot and may not be reproduced without permission