The Pacman Nebula in Cassiopeia

Imaged from Nova Scotia, late fall, 2011 through a Canon 600mm f4.0 telephoto lens using a modified Canon T3i DSLR.

This image is a combination of 438 minutes of hydrogen alpha data through a 6nm filter with an additional 64 minutes of RGB. The total integration time was 8 hours, 22 minutes.

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