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Skypoint Astronomy on Twitter: "Esposta mont #AstroPhysics Mach1GTO su treppiede Berlebach. Che finezza! http://t.co/v6Mq4bpT6L #Astronomia #Saldi http://t.co/eJMasXH1e5" / Twitter
Test telescopi, montature e accessori per l'astronomia
Introduction to Astronomical Observation Instruments and Deep Space Photography - Spaceclick