Alvan Clark
Alvan Clark (1804-1887)
Inventor of telescope, such as the 26 in equatorial at the Naval Observatory, Washington, DC, used to observe Encke's Comet in 1875. [1]
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Alvan Clark (1804-1887)
Inventor of telescope, such as the 26 in equatorial at the Naval Observatory, Washington, DC, used to observe Encke's Comet in 1875. [1]
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