Telescope (Comet Seeker)
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Object Details
- Description
- This comet seeker is one of the “two forty-five inch Refractors” mentioned in a Georgetown publication of 1852. The achromatic objective has an aperture of 3.5 inches, and the brass tube is but 34 inches long, giving it a relatively short-focus and wide field of view. It has a brass pillar-and-tripod base, and wooden rods for adjustment in altitude and azimuth. It may have come from the shop of W. & S. Jones, 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.
- Location
- Currently not on view
- Credit Line
- Georgetown University
- ca 1840
- ID Number
- PH.316097
- catalog number
- 316097
- accession number
- 224215
- Object Name
- telescope
- telescope, refracting
- Physical Description
- brass (overall material)
- Measurements
- overall: 28 in x 16 1/2 in x 34 3/4 in; 71.12 cm x 41.91 cm x 88.265 cm
- scope: 34 3/4 in x 4 in; 88.265 cm x 10.16 cm
- See more items in
- Medicine and Science: Physical Sciences
- Astronomy
- Science & Mathematics
- National Museum of American History
- Subject
- Astronomy
- Record ID
- nmah_1167220
- Metadata Usage (text)
- CC0
- GUID (Link to Original Record)
- http://n2t.net/ark:/65665/ng49ca746a9-f116-704b-e053-15f76fa0b4fa
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