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Home > All Images > 1990 > June > 26 Jun 1990

Images Dated 26th June 1990

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Computer simulation of solar oscillations Featured 26 Jun 1990 Print

Computer simulation of solar oscillations

Computer simulation showing oscillations on the surface of the Sun. The Sun's surface is known to oscillate up and down like the surface of a wobbling jelly. The effect is due to the presence of sound waves of different frequencies, bouncing back & forth within the Sun. This simulation shows a combination of only 100 modes of oscillation; ten million different modes are known to exist. The height of the oscillations has been exaggerated by a factor of 1000 in this image. Each of these bumps moves up and down once every 5 minutes or so; the exact period of oscillation of each mode carries information on the structure & dynamics of the interior of the Sun

© DAVID HATHAWAY/NASA/SCIENCE PHOTO LIBRARY