Optical parts of Lassell's telescope:- prism for 9-in reflector in green cardboard box

Made:: 1840-1850 in Liverpool

maker:: William Lassell

Optical parts of Lassell's telescope:- prism for 9-in reflector in green cardboard box; 3 multiple eyepieces; 5 small eyepieces; plane speculum on arm for 9-in; speculum for Newtonian finder in tin case 4 eyepices; 4 diaphragms (3 in two tin cases and one in wood case with metal lid)

Optical parts of Lassell's telescope

1840-1850

Optical parts of Lassell's telescope

1840-1850

Details

Category:: Astronomy

Object Number:: 1921-819

Materials:: metal, glass and cardboard

type:: concave mirrors, metal mirrors and erecting prism

credit:: Mr Thomas H. Court

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