The Andromeda Galaxy (M31), California

The Andromeda Galaxy (M31)
White Mountains, Grandview Campground, California
Canon EOS 6D H-alpha modified   *   Takahashi FSQ-106EDX III refractor   *   ISO 1600   *   f/5

59 x 1 min + 28 x 1 min; 18 x 10 min + 17 x 10 min. HDR Merge. ca. 2.75 hr of 10 min + 0.75 hr 1 min exposures.

The beautiful Andromeda spiral galaxy (Messier 31) is the most distant object visible to the naked eye from very dark skies. This is a long exposure mosaic of two frames.

Because the bright galactic core is easily overexposed, I combined long and short exposures using HDR (High Dynamic Range).

The hazy glowing object just below Andromeda is the dwarf elliptical galaxy Messier 32 (NGC 221), a satellite of M31.

On the other side, the glowing circular spot is yet another satellite galaxy, Messier 110 (NGC 205).

Photo ID: M31 HDR mosaic

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