Image captured from my observatory at the Texas Astronomical Society of Dallas dark sky site in Atoka, OK. Image captured with a Canon 60Da/ Canon L-series 24-105 mm f/4 lens at ISO800. Total exposure: 120-min using 12x10minute subexposures.
I worked very hard to obtain every minute of exposure as the field set into the treeline. This was a very challenging astroimaging feat as I had to balance the competing demands of obtaining a field wide enough to contain an area from the Andromeda galaxy to the Double Cluster with a setting sky (note the few trees in the western (lower left) sky).
Original image data dated on or about February 18, 2015.
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: Max Corneau