Clyde Tombaugh at a Zeiss Blink Comparator

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Browse TopicScience and TechnologySubjectAstronomyPlutoTombaugh, ClydeZeiss Blink ComparatorDescriptionClyde Tombaugh at a machine called a Zeiss Blink Comparator, used in the discovery of Pluto. Two glass plates of the same area of the sky were blinked back and forth to look for the movement of objects against the background stars. Pluto was discovered by Tombaugh on February 18, 1930, and the announcement was made on March 13 of that year.Date Original1935~Date Range1930s (1930-1939)TypeStill ImageOriginal FormatBlack-and-white photographsContributing InstitutionLowell Observatory ArchivesCollectionSelections from the Lowell Observatory ArchivesRights StatementThis object is property of the Lowell Observatory Archives. Any public use requires the written permission of the Lowell Observatory Archives. Contact us at http://www2.lowell.edu/Research/library/

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City or TownFlagstaffCountyCoconino CountyStateArizonaCountryUnited StatesGeoNames URIhttps://sws.geonames.org/5303006

PersonClyde Tombaugh

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Identifiera_0171c.tifDigital FormatJPEG

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Clyde Tombaugh at a Zeiss Blink Comparator

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