Celestron Fastar 8 at f/1.95, PixCel 237. This 240 second exposure consists of four 60 seconds images Track and Accumulate, using the AP900 with PEM correction engaged. Unguided at -26.81 degrees Celsius.
Celestron Fastar 8 at f/1.95, PixCel 237. This 240 second exposure consists of four 60 seconds images Track and Accumulate, using the AP900 with PEM correction engaged. Unguided at -26.81 degrees Celsius.