Smythian telescope, c.1824, a refractor of 3 3/4 inch aperture, 50 inch focal length, and accessories

Made:
1825-1829 in London
maker:
Thomas Charles Robinson
and
Charles Tulley

Smythian telescope, c.1824, a refractor of 3 3/4 inch aperture and 50 inch focal length by Thomas Robinson, Portland Place, London with optics by Charles Tulley in fitted box but without equatorial mount or stand. Separate fitted box contains 6 astronomical eyepieces, terrestrial eyepiece, cometary eyepiece, filter wheel, Herschel wedge, split-lens micrometer by Dollond, double-image micrometer by Thomas Robinson and related items including an occulting bar, graticle and ring (annular) micrometer. First used by Capt. W. H. Smyth at Bedford then given by him to Dr Lee at Hartwell House in 1828, later used by Dr N R Pogson from 1857 until 1860 at the Radcliffe and Hartwell Observatories and then at the Madras Observatory, India until 1891. Presented to the British Astronomical Association by the widow of Dr C. Michie Smith.

Details

Category:
Astronomy
Object Number:
1988-197
Materials:
case, mahogany and telescope, brass, glass
type:
refracting telescope, crystal micrometer and filar micrometer
credit:
British Astronomical Association

Parts