instrument component; filar micrometer

Made:
1770 in London
maker:
John Smeaton

Filar micrometer, part of refracting telescope by John Smeaton on equatorial mounting with stand [RAS No.7] . Presented to Royal Astronomical Society in 1845 by Mrs Sommerville to whom it was left by Mrs Dixon, Smeaton's daughter.

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Details

Category:
Astronomy
Object Number:
1931-347 Pt2
Materials:
brass, complete, glass, rosewood, steel
type:
instrument component
taxonomy:
  • component - object
  • furnishing and equipment
  • measuring device - instrument
  • micrometer - angle
credit:
Royal Astronomical Society
status:
Permanent collection

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