Glass disc for telescope mirror

Made:
1840-1870 in England
maker:
Charles Algernon Parsons
Glass disc for telescope mirror, 12 diameter and 2 1/4' thick

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Glass disc for telescope mirror, 12 diameter and 2 1/4' thick
Science Museum Group
© The Board of Trustees of the Science Museum

Glass disc for telescope mirror, 12" diameter and 2 1/4" thick. Built up from two 3/8" plate glass circles separated by granulated glass in an experiment conducted by Sir Charles A. Parsons

Details

Category:
Astronomy
Object Number:
1954-183
Materials:
glass
Measurements:
length 310 mm
width 310 mm
height 60 mm
type:
components, concave mirrors, glass mirrors and astronomical instruments
credit:
C.A. Parsons and Company Limited.

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