Transit instrument of 3-inch aperture and focal length of 42 inches

Made:: 1815-1819 in London

maker:: Peter Dollond

Transit instrument of 3-inch aperture and focal length of 42 inches, with striding level by Dollond with wooden case. This Royal Society instrument was used by Captain Kater for his experiments on the pendulum at the principal stations of his trigonometrical survey.

Details

Category:: Astronomy

Object Number:: 1900-137

Materials:: brass and glass

Measurements:: overall (with wooden stand): 1020 x 860 x 1150 mm

type:: transit instrument

credit:: The Royal Society

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Parts

Case for 42-inch transit instrument by Dollond

Materials:: wood

Object Number:: 1900-137 Pt1

type:: components , storage boxes and instruments

Transit instrument of 3-inch aperture and focal length of 42 inches

Transit instrument of 3-inch aperture and focal length of 42 inches, with striding level by Dollond. This Royal Society instrument was used by Captain Kater for his experiments on the pendulum at the principal stations of his trigonometrical survey.