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The Great Nebula in Orion

The best 80% of 63 separate (Canon EOS 7D + Sky Watcher Explorer 200P on EQ5 Mount coupled via T-Ring) images.

 

Each image was taken at ISO1600 and 0.3s exposure. The SWE 200P gave the EOS 7D the equivalent of a 1000mm lens @ F=5.0. With hindsight 0.3s was a bit too long an exposure as the stars have that oval look about them. I don't have a tracking capability on the EQ5 Mount ...... Yet.

 

The images were taken on the 22nd March 2015 from our back garden Witney in Oxfordshire. Seeing conditions that night weren't all that great, the day had been quite warm for the time of year and it was still cooling down.

 

The images were stacked using Deep Sky Stacker and then gently post processed by adjusting the brightness and contrast levels using Photoshop Elements 8. Didn't want to over do it for fear of swamping out the trapezium (the tight cluster of four stars near the heart of the nebula).

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Uploaded on March 30, 2015