Three draw terrestrial refracting telescope

Made:: 1771-1830 in Italy

$Three draw terrestrial refracting telescope$

Science Museum Group
© The Board of Trustees of the Science Museum

Three draw terrestrial refracting telescope, by Leonardo Semmecolo, magnification 6x, focal length 750mm, Italian, 1771-1830

Details

Category:: Wellcome (general)

Collection:: Sir Henry Wellcome's Museum Collection

Object Number:: A120933

Materials:: lenses (4), glass, lens mount, horn and draw tubes, cardboard, paper and leather covered

Measurements:: focal length, objective
approx: length 750 mm
focal length, eyepiece, effective: length 130 mm
objective: diameter 29 mm
objective stop: diameter 20 mm
draw tubes stowed: length 310 mm
overall: diameter 50 mm

type:: telescope - terrestrial and telescope - refracting

credit:: Bruscoli, C.

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Three draw terrestrial refracting telescope

Details

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