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M81

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M81 - Color

M81

The “flagship” galaxy of the Ursa Major Group. The outer arms are lit with a bluish color due to the presence of young, blue/white stars. Note the small yellowish “mini-bar” structure in the core of the galaxy. Heavy use of Digital Development was employed to bring out central region details.

12 1/2″ Ritchey-Chretien Telescope with an ST10XE/CFW8, F/7&f6 LRGB (45/7min BW,8/5 minRG,12/5minB with the RGB components binned 2×2).