M51 the Whirlpool Galaxy by Robert Starzynski

Robert Starzynski | all galleries >> Bob Starzynski Astro Imaging >> galaxies > M51 the Whirlpool Galaxy

M51 the Whirlpool Galaxy

Taken over 2 nights 2/20/10 and 3/8/10 from Hillsborough NJ
5 hours and 25 minutes total exposure.

Orion 190mm Mak-Newtonian
Celestron CGE ST-4 guided
Modified Canon XT no filters
80* 150 second 400iso subs
45*150 second 800iso subs
Dark, flat and bias calibrated in ImagesPlus

other sizes: small medium large original auto

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