M20


Technical Data
Optics Concentric Schmidt, 400mm diameter
Focal Lenght 1600mm
Focal Ratio f/4
Exposure Time and filters 1h42m total exposure (single exposures of 3 min)
CCD Starlight Xpress SXV-M25
Location Villatalla (IM, in the Italian Appennines) at 600m
Date
11 august 2007
Mount Fork mount
Tracking Starlight guider
Temperature and humidity T=+20°C, RH=70%
Notes Authors: Lorenzo Comolli and Alfredo Zanazzo

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