Lagoon and Trifid

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These are two of the most beautiful nebula of the sky: at bottom the Laguna (M8) and at top the Trifid (M20). At top-right there is also the open cluster M23 and at left of M8 the NGC 6559 nebula.
See also the shot with 500mm.
 

Technical Data
Optics	Photographical objective
Focal Lenght	200 mm
Focal Ratio	f/7
Exposure Time	25 min exposure
Film	Kodak E200
Developement sensibility	320 ISO
Location	Capanne di Cosola (AL, on the Appenninus, Italy) at 1500m
Date and time of exposure start	15 may 2002, 0.50 UT
Mount	Gemini G41
Tracking	ST4
Temperature and humidity	T=+7°C, RH=50%
Notes	-

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