Messier 51 whirlpool galaxy in the constellation Canes Venatici about 30 million light years away.Discovered by Charles Messier in 13Octomber 1773.
telescope RC 6 inches f9 , mount Skywatcher HEQ5 pro, camera foto Atik 314L+ color ccd, guide camera ZWO ASI 120mm monochrome ,guide telescope Skywatcher 70/500mm, exposures 9 frames x 600 sec.
Location Santorini -GREECE 12 mai 2017.
telescope RC 6 inches f9 , mount Skywatcher HEQ5 pro, camera foto Atik 314L+ color ccd, guide camera ZWO ASI 120mm monochrome ,guide telescope Skywatcher 70/500mm, exposures 9 frames x 600 sec.
Location Santorini -GREECE 12 mai 2017.
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