61 Cygni – Binary Star System

61 Cygni is a famous binary star system located in the constellation Cygnus. The two stars, both dwarf stars that show a neat orange tint, and both are smaller and more faint than our Sun. The two stars take nearly 700 years to complete a single orbit around each other. They are also famous for exhibiting a large proper motion, motion across the sky as seen from Earth, of over 5 arc-seconds per year, it has been dubbed by some as “The Flying Star”. The large proper motion is at least partly addressed by the stars close proximity to the Earth, only about 11 light-years away.

Tech Specs: Meade 12” LX90, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 800, 45 second exposure using Backyard EOS, no darks or bias frames, guided using a Canon 400mm lens with an attached ZWO ASI290MC camera. Image Date: September 9, 2017. Location: The Dark Side Observatory in Weatherly, PA.

Additional information:

EarthSky (http://earthsky.org/brightest-stars/61-cygni-suns-near-neighbor)

Wikipedia (https://en.wikipedia.org/wiki/61_Cygni)

Sky and Telescope (http://www.skyandtelescope.com/observing/on-the-move-with-barnards-star-and-61-cygni06032105/)

…Tom

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