21-hours of 40 and 20-minute subs on M45 – The Pleiades

Going through the old data I found I had taken the same region of M45 (the Pleiades) over 3 different nights. The data turned out to be 21-hours worth of 40 and 20-minute subs taken on the Sky90 array with the M26C OSC CCDs. Here’s the result.