Helioseismography

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Helioseismography is the study of the properties of the sun by using (sound)waves to determine the temperature, density, composition, and motion of the interior of the sun. These sound waves, and the modes of vibration they produce, can be used to probe the interior of the sun the same way that geologists uses seismic waves from earthquakes to probe the inside of the earth. Some of these waves travel right through the center of the sun while others are bent back toward the surface at shallow depths.

[edit] External links

• http://www.spaceweather.com/glossary/farside.html