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| The Sun - 27 March 2001 | |||
© Philipp Salzgeber 27 March 2001 A Baader Planetarium solar filter (mylar) was used in a homemade card-board mount. In this picture the suns shows many dark blotches, commonly called sunspots. These spots show up in large numbers during the maximum of the 11-year sunspot-cycle. They are caused by magnetic disturbances in the uppermost layer of the sun, the so-called solar photosphere.
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Astrophotography
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