Telescope

Description:

This is one of the “two forty-five inch Refractors” mentioned in a Georgetown publication of 1852. It has a brass pillar-and-tripod base, an equatorial mount, and mahogany handles for adjustments in right ascension and declination. The (missing) achromatic objective had an aperture an 3.5 inches. The brass tube is 42½ inches long. The “W. & S. Jones” inscription refers to a London firm that, from 1791 to 1859, sold a wide range of scientific and mathematical instruments.

Ref: Annals of the Astronomical Observatory of Georgetown College, D.C. 1 (1852), p. 14.

Date Made: ca 1840

Maker: W. & S. Jones

Location: Currently not on view

Place Made: United Kingdom: England, London

See more items in: Medicine and Science: Physical Sciences, Astronomy, Science & Mathematics

Exhibition:

Exhibition Location:

Credit Line: Georgetown University

Data Source: National Museum of American History

Id Number: PH.316098.01Accession Number: 224215Catalog Number: 316098.01

Object Name: telescopetelescope, refracting

Measurements: overall: 45 1/2 in x 9 in x 3 in; 115.57 cm x 22.86 cm x 7.62 cmoverall: 47 in x 4 1/2 in x 4 in; 119.38 cm x 11.43 cm x 10.16 cm

Guid: http://n2t.net/ark:/65665/ng49ca746af-e29a-704b-e053-15f76fa0b4fa

Record Id: nmah_1167204

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