M57 – Ring Nebula – James Dawson – 02/05/2014
Celestron C11; 280mm aperture; 2800mm focal length; f/10; ISO 6400; 30 second exposures, 2 second interval between subs; 271 exposures (135 minutes worth of data)
Celestron C11; 280mm aperture; 2800mm focal length; f/10; ISO 6400; 30 second exposures, 2 second interval between subs; 271 exposures (135 minutes worth of data)