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Airy Disc under Average Seeing

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Uploaded on Feb 14, 2011

The Airy pattern is blurred into a small soft, grainy ball when the seeing is Average.The blurring effect is cause by the atmospheric turbulence.

This video corresponds to spoting Arcturus (a very bright star) at around a magnification of 200x first and 500x later.

The telescope used is a 125mm telescope, a Celestron NexStar 5SE XLT and the camera is a Canon EOS 450d (Rebel XSi) DSLR.

This video is not about Ufo Sightings nor Nasa Imagery, nor Niburu/Nibiru. It is just a visual aid to measure the seeing just looking into the airy disc of a star.

Airy Disc, Average Seeing, Atmospheric, Turbulence, Telescope, Celestron NexStar 5SE XLT, Astronomy, Astrophotography, Astrophoto, Backyard, 2011, Canon EOS 450d, Rebel XSi, video, DSLR, Live video

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