M 101, The Pinwheel Galaxy (UMa)

Technical data:    15"f/5,4 Newtonian with Paracorr corrector

                           SBIG ST10XME, CFW8

                           LRGB (L=8x600s; R=3x600s; G=3x600s; B=3x600s; color channels bin 2)

                          Comments: night with medium transparency, mag 5,5

                           Author: Volker Wendel

 

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