Optical parts of Lassell's telescope
Optical parts of Lassell's telescope:- prism for 9-in reflector in green cardboard box; 3 multiple eyepieces; 5 small eyepieces; speculum for Newtonian finder in tin case 4 eyepices; 4 diaphragms (3 in two tin cases and one in wood case with metal lid)
Details
- Category:
- Astronomy
- Object Number:
- 1921-819/1
- Materials:
- metal (unknown) and wood (unidentified)
- type:
- components, eyepieces, concave mirrors, flat mirrors, metal mirrors and erecting prism
- credit:
- Mr Thomas H. Court
