Astronomer Vance Petriew at the eyepiece of his 20-inch Dobsonian reflector telescope, at the 2012 Saskatchewan Summer Star Part

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Astronomer Vance Petriew at the eyepiece of his 20-inch Dobsonian reflector telescope, at the 2012 Saskatchewan Summer Star Party in Cypress Hills, SK. This is a single 20 second exposure with the Canon 5DMkII at ISO 4000, and 24mm Canon L-series lens at f/2. A faint aurora adds the horizon colours. The photo was taken on the occasion of the second return of Comet Petriew 185/P since its discovery 11 years earlier in 2001 at this very same location.

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Size: 3600px × 5400px
Location: Saskatchewan, Canada
Photo credit: © Alan Dyer / VWPics / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -series, /2., 20, 20-, 2012, 24mm, 4000, 5dmkii, adds, astronomer, astronomy, aurora, canon, colours., cypress, dobsonian, dobsonian., exposure, eyepiece, faint, hills, horizon, iso, lens, man, nightscape, observers, party, petriew, portrait, reflector, saskatchewan, single, sk., star, summer, telescope, vance