Silver-on-glass mirror of 9-inch aperture by G.H.With

Silver-on-glass mirror of 9-inch aperture by G.H.With, plus driving clock from Canon Cross's equatorial Newtonian telescope (RAS No.141). Presented to the Royal Astronomical Society in 1900 by Mrs Cross.

Details

Category:
Astronomy
Object Number:
1984-578
Materials:
glass, brass and wood
Measurements:
overall (estimate): 150 x 240 mm
type:
components, concave mirrors, glass mirrors and astronomical instruments
credit:
Royal Astronomical Society

Parts

Silver-on-Glass Telescope Mirror

Silver-on-Glass Telescope Mirror

Silver-on-glass telescope mirror, 9-inch diameter, by George H. With, Hereford, from Canon Cross's equatorial Newtonian reflecting telescope, 1865-90. Mounted in brass mirror cell with lid, detached from rest of telescope.

Materials:
brass (copper, zinc alloy) , glass , teak (wood) , steel (metal) , paper (fibre product) and mirror-glass (silvered)
Object Number:
1984-578 Pt1
type:
components , concave mirrors and glass mirrors
Image ©
The Board of Trustees of the Science Museum
Case for silver mirror

Case for silver mirror

Case for Silver-on-glass mirror of 9-inch aperture by G.H.With, plus driving clock from Canon Cross's equatorial Newtonian telescope (RAS No.141). Presented to the Royal Astronomical Society in 1900 by Mrs Cross.

Object Number:
1984-578 Pt3
type:
case - container
Image ©
The Board of Trustees of the Science Museum