Rude Star Finder (2102-C)

Description:

This star finder, designed for aeronautical use, was based on the Rude form as modified by Elmer Collins of the United States Hydrographic Office. It consists of a white plastic planisphere with the northern sky on one side and the southern on the other that shows all the stars in the American and the British Air Almanacs; nine clear plastic altitude-azimuth templates for use at different latitudes up to 85° north and south; an instruction card; and a leatherette container. It was published in March 1942 under the authority of the Secretary of the Navy, and cost $2.50. The Hydrographic Office transferred this example to the Smithsonian in 1957. The instrument bears the inscription "No. 2102-C / A-N TYPE 1 / STAR FINDER AND IDENTIFIER / PATENT Nos. 2304797 - 2337545 / U.S. NAVY HYDROGRAPHIC OFFICE."

Ref: Elmer B. Collins, "Star Finder," U.S. patent #2,304,797

Elmer B. Collins, "Star Finder," U.S. patent #2,337,545

Nathaniel Bowditch, American Practical Navigator (Washington, D.C.: Unted States Hydrographic Office, 1943), pp. 212-214.

"Elmer B. Collins," Washington Post (2 October 1958), p. B2.

Date Made: 1942

Location: Currently not on view

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

Exhibition:

Exhibition Location:

Data Source: National Museum of American History

Id Number: PH.315071.3Catalog Number: 315071.3Accession Number: 214422

Object Name: star finder

Measurements: overall: 8 1/2 in; 21.59 cmoverall: 10 1/4 in x 10 1/2 in x 3/4 in; 26.035 cm x 26.67 cm x 1.905 cm

Guid: http://n2t.net/ark:/65665/ng49ca746ab-6aad-704b-e053-15f76fa0b4fa

Record Id: nmah_1253891

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