Scutum star cloud (500mm)

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Observed at naked eye, this part of Milky Way in the constellation of Scutum seems a cloud, but with a telescope we can resolve in a lot of stars (as in this image). The open cluster M11 is in the center. All the region is rich in dark nebula, such as B110 and B112 at the top, near the star Beta Scuti (the brighter at top-right).
 

Technical Data
Optics	Pentax 75 apochromatic refractor
Focal Lenght	500 mm
Focal Ratio	f/6,7
Exposure Time	30 min exposure
Film	Kodak E200
Developement sensibility	320 ISO
Location	Colle del Nivolet (AO, on the Apls, Italy) at 2600m
Date and time of exposure start	5 october 2002, 19.05 UT
Mount	Gemini G41
Tracking	ST4
Temperature and humidity	T=+1°C, RH=74%
Notes	-

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