Percival Lowell observing Venus from the Lowell Observatory in 1914
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Percival Lowell observing Venus in the daytime from the observer's chair of the 24-inch (61 cm) Alvan Clark & Sons refracting telescope, installed in the summer of 1896 at the Lowell Observatory, which he established in Flagstaff, Arizona (USA). Although known for observing Mars, this image has a long running attribution of "Percival Lowell observing the planet Venus in the daytime",[1] something he did from 1896 onward, observing the planet high in the daytime sky with the telescope's lens stopped down to 3 inches in diameter. This image of an older Lowell was taken in 1914.[2]
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PD because of age
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Public domain
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Reconstructed from several online sources by Joe Haythornthwaite
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Percival LowellPercival Lowell war ein US-amerikanischer Astronom. Er begann als Amateurforscher, wurde aber zu einem der bekanntesten Astronomen seiner Zeit und zum Gründer des Lowell-Observatoriums. .. weiterlesen