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M31 - Andromeda Galaxy

September 16. 2017.

Telescope: Sky-Watcher MN190 on AZ-EQ6 GT

Camera: Canon450D mod

Frames: 36x420s (4.2 hours of cumulative exposure)

Software: BackyardEOS & PHD2 for capture; Pixinsight & Photoshop for post processing.

 

The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224, is a spiral galaxy approximately 780 kiloparsecs from Earth. It is the nearest major galaxy to the Milky Way and was often referred to as the Great Andromeda Nebula in older texts... (from Wikipedia)

 

Being a very large object in our sky, my telescope's 1000mm focal length and 1.25º x 0.83º field of view wasn't nearly enough to capture whole galaxy in one shoot so my choice was "left" part of the galaxy including it's bright core which contains supermassive black whole. In spiral arms there are lots of dust lanes and big blueish star cloud known as NGC 206 along with some of the Ha regions visible. There is also small but bright satellite galaxy M32 near upper edge of the Andromeda Galaxy

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Uploaded on September 18, 2017