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Star Photography

Star Photography image
Parent Issue
Day
2
Month
February
Year
1894
Copyright
Public Domain
OCR Text

Star photograpby is one of the most tedious operations knowa. Ín some cases the ex;io;;)we of the píate :nust last for several hqnrs. Dnriug all this time both the píate and telescope nxnst be moYedsti that the image of the star will be stationary ou the plate. The expo6ure of a star i)f the sisteenth magnitude is two hours, and only the image of one at a time eau be tsecured uult'bs those adjoining happen to be ot the same

Article

Subjects
Ann Arbor Argus
Old News