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Fig. 12 - Messier 42 & Messier 43 in Orion on October 23, 2011. 1 x 80 s, 1 x 4 min, 1 x 8 min at ISO 400. Canon EOS 20Da camera, TeleVue coma corrector, Zambuto 16-inch f/5 dobsonian telescope, dual-axis Tom Osypowski equatorial platform.

22 October 2011