Heliometer with 7 1/2 inch object lens, built for Radcliffe Observatory

Made:
1840-1848 in Hamburg
maker:
A and G Repsold

Heliometer built by A. & G. Repsold of Hamburg with a 7 1/2 inch object lens by Merz of Munich. Ordered in 1840 and delivered to the Radcliffe Observatory, Oxford, in 1848 where it was used for stellar parallax observations.

Details

Category:
Astronomy
Object Number:
1935-6 Pt4
Materials:
brass, complete, glass and steel
Measurements:
overall (plinth included): 3000 x 2450 x 2450 mm
Object (incl optical tube, excl some small components and wooden mount): 1470 kg
Optical tube (when separated from object): 190 kg
type:
instrument component
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • micrometer - angle
  • double image micrometer
  • component - object
credit:
Trustees of Dr. John Radcliffe