Geodetic Transit

Description:

This transit marked "Stackpole & Bro. New York 1504" is one of eight identical instruments that the firm made for the United States expeditions to observe the 1874 transit of Venus across the face of the sun. It has a "broken" telescope that is viewed through one end of the horizontal axis, a graduated vertical circle, a cast-iron base, and a mechanism for lifting and reversing the telescope.

Date Made: ca 1873

Maker: Stackpole and Brother

Location: Currently not on view

Place Made: United States: New York, New York City

See more items in: Medicine and Science: Physical Sciences, Surveying and Geodesy, Measuring & Mapping

Exhibition:

Exhibition Location:

Credit Line: U.S. Department of Defense, U.S. Naval Observatory

Data Source: National Museum of American History

Id Number: PH.327719Maker Number: 1504Accession Number: 283654Catalog Number: 327719

Object Name: geodetic transit

Measurements: telescope aperture: 2 1/4 in; 5.715 cmfocal length: 30 in; 76.2 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a5-b664-704b-e053-15f76fa0b4fa

Record Id: nmah_758934

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