M42 Great Nebula in Orion

Date: 29 October 2013

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

Exposure: 21 x 75s @ ISO100, 26 dark frames, 30 bias frames, 18 flat frames

Processing: Exposures captured with Astrophotography Tool, raw files (cr2) stacked with Deep Sky Stacker Beta, curves adjusted with GIMP

Location: London, England

I was relatively pleased with this first attempt at capturing the Orion Nebula. My exposure time of 75s meant that some trailing was occurring, which I didn't pick up during the acquisition. However, the nebulous detail was still stunning. Again, my recurring problem of removing the gradients arose.