Sirius and William Herschel

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Sirius shining in the Canis Major constellation seen above the William Herschel Telescope (WHT), the largest optical telescope of its kind in Europe, with a primary mirror of diameter 4.2 meters. Its versatile and state-of-the-art instrumentation together with the superb sky quality of the Roque de Los Muchachos, the Observatory have made the WHT one of the most scientifically productive telescopes in the world.

|  Canon 60Da – ISO2500; 24mm at f/2; Exp. 15 secs. in 30/09/2013 at: 05h32 AM

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