15 Mar

File:Percival Lowell-observing Mars from the Lowell Observatory.jpg

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|Description={{en|Percival Lowell observing in the daytime from the observer's chair of the 61-centimeter (24-inch) [[W:Alvan Clark & Sons|Alvan Clark & Sons]] refracting telescope he installed in the summer of 1896 at the observatory he established in Flagstaff, Arizona (USA). Although known for observing [[w:Mars|Mars]], this image has a long running attribution of "Percival Lowell observing the planet [[w:Venus|Venus]] in the daytime"sources being "Clarence Augustus Chant, Our wonderful universe: an easy introduction to the study of the heavens, G.G. Harrap & company ltd., 1928, page 92", "William Sheehan, A Passion for the Planets: Envisioning Other Worlds, from the Pleistocene to o the Age of the Telescope, Springer, 2010, page 35", 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 is given a general creation date of between 1908 and 1910.)}}
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|Description={{en|Percival Lowell observing in the daytime from the observer's chair of the 61-centimeter (24-inch) [[W:Alvan Clark & Sons|Alvan Clark & Sons]] refracting telescope he installed in the summer of 1896 at the observatory he established in Flagstaff, Arizona (USA). Although known for observing [[w:Mars|Mars]], this image has a long running attribution of "Percival Lowell observing the planet [[w:Venus|Venus]] in the daytime"sources being "Clarence Augustus Chant, Our wonderful universe: an easy introduction to the study of the heavens, G.G. Harrap & company ltd., 1928, page 92", "William Sheehan, A Passion for the Planets: Envisioning Other Worlds, from the Pleistocene to o the Age of the Telescope, Springer, 2010, page 35", 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 is given a general creation date of between 1908 and 1910.}}

|Source=Taken to [[en:Image:Percival Lowell.observing Mars from the Lowell Observatory.jpg]] on March 13, 2004 from [http://www.nasm.si.edu/research/ceps/etp/mars/marsimg/mars_lowell.jpg]: [http://www.alma.nrao.edu NASM: Mars - Observation - Exploring the planets]

|Source=Taken to [[en:Image:Percival Lowell.observing Mars from the Lowell Observatory.jpg]] on March 13, 2004 from [http://www.nasm.si.edu/research/ceps/etp/mars/marsimg/mars_lowell.jpg]: [http://www.alma.nrao.edu NASM: Mars - Observation - Exploring the planets]

|Author=unknown

|Author=unknown

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