Sunday, May 29, 2011


Astronomical seeing refers to the blurring and twinkling of astronomical objects such as stars caused by turbulent mixing in the Earth's atmosphere varying the optical refractive index. The astronomical seeing conditions on a given night at a given location describe how much the Earth's atmosphere perturbs the images of stars as seen through a telescope.

Thank you, Wikipedia.

For more of the Atacama Desert see Nostalgia de la Luz at BIFF'd »

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