File:Lowell astrograph.jpg

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Summary

Description
English: Tombaugh used Lowell Observatory's 13-inch (3 lens element), f/5.3 refractor astrograph, which recorded images on 14x17 inch glass plates, to discover Pluto.
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Author Taken by Pretzelpaws with a Casio Exilim EX-Z750 camera. Cropped 8/16/05 using the GIMP.
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Date/TimeThumbnailDimensionsUserComment
current10:34, 11 January 2006Thumbnail for version as of 10:34, 11 January 20061,995 × 2,976 (619 KB)Fanghong{{information| |Description =Astrograph at Lowell Observatory used in the discovery of Pluto. |Source =From [http://www.loc.gov/loc/lcib/images/amwom-tubman.jpg] |Date = 8/10/05 |Author = Taken by en:User:Pretzelpaws with a [[Exilim|Cas
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