The ground-based image of Comet 17P/Holmes was taken November 1, 2007, by astrophotographer Alan Dyer. The observations were made in southern Alberta, Canada with a 105mm apochromatic refractor at f/5 with a Canon 20Da camera at ISO400. Field is about 2.5 x 1.5 degrees.
Object Name: Comet 17P/Holmes
Image Type: Astronomical
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