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    Spotless Sun

    Posted by soldati.org
    on Monday, August 17, 2009
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    by Nicolas Soldati

     

    Switzerland

    Zeiss APQ 150/1200 Baader Helioscop 4x FFC (f/D=32) SolarContinuum filter Point Grey Research monochrome camera Still no spot on the sun....

    Tags: Sun
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