Wednesday, July 05, 2017

imaged M109 (Halifax)

The Burke-Gaffney BGO robot imaged Messier 109 for me. A large barred spiral galaxy in Ursa Major. From my list of Messiers viewed once...

Messier 109 in luminance

Luminance only, 60 seconds subexposures, 10 stacked shots. FITS Liberator, GIMP. North is up; east is left.

M109 is slightly canted. It features a large, pronounced central bar. Large spiral arms with a bright core. Some foreground field stars. The left/east edge of the galactic disc seems less defined than the right. Is this what our galaxy looks like?

To the north-west, there seems to be a double with GSC 03833-0437 and GSC 03833-0436.

South, there's a small fuzzy comma. MCG 9-20-45 aka PGC 37621.

East, I see a medium-sized oval. MCG 9-20-48 aka PGC 37700.


Pretty scant notes from Aug 2011.


Wikipedia link: Messier 109.

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