M57 Ring Nebula

Date: 10 November 2013

Equipment: Skywatcher Explorer 150P, EQ3-2 with dual-axis motor drive, Skywatcher 0.9x Coma Corrector, Canon EOS 1100D

Exposure: 24 x 70s @ ISO400, 21 dark frames, 20 bias frames, 11 flat frames

Processing: Exposures captured with Astrophotography Tool, raw files (cr2) stacked with Deep Sky Stacker Beta, curves adjusted, background removed and colours tweaked with Fitswork

Location: London, England

I tried again at imaging the Ring Nebula, this time with a longer exposure to obtain more signal and a better focus achieved using the Live View function on the camera. In addition, the coma corrector prevented the smeared stars of the previous attempt.