Refracting Telescope of Aperture 6.5 in ( 165mm)

Made:
1851 in York and London
maker:
Thomas Cooke and Baker, Charles
Refracting Telescope of Aperture 6.5 in ( 165mm)

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© The Board of Trustees of the Science Museum

Refracting telescope of aperture 6.5 in ( 165mm) in tube of brass and steel by Thomas Cooke, York, 1851, carried on equatorial mount probably by Wray, london, together with driving clock by Charles Baker, 244 High Holborn, London, two Avery metal weights, painted metal base (objective in separate box)

Details

Category:
Astronomy
Object Number:
1986-1243
Materials:
steel, brass, glass and incomplete
Measurements:
overall: 3200 mm x 3900 mm x 700 mm, 524 kg
clockwork mechanism: 19 kg
Avery weight: 25 kg
equatorial mount and base: 410 kg
optical tube: 45 kg
type:
telescope - refracting
credit:
Edwards, J.K.

Parts

Cooke Refracting Telescope of Aperture 6.5in (165mm)

Cooke Refracting Telescope of Aperture 6.5in (165mm)

Refracting telescope of aperture 6.5 in (165mm) by Thomas Cooke, York, 1851, carried on an equatorial mount [not original] probably by Wray, London

Measurements:
overall: 3200 mm x 850 mm x 700 mm, 72 kg
Materials:
steel (metal) and brass (copper, zinc alloy)
Object Number:
1986-1243 Pt1
type:
instrument component and telescope - refracting
Objective 6 1/2-inch Aperture Glass in Case, for Cooke Refracting Telescope

Objective 6 1/2-inch Aperture Glass in Case, for Cooke Refracting Telescope

Objective Glass of 6 1/2-inch aperture for telescope by Thomas Cooke, York, 1851. In mahogany case.

Materials:
mahogany (wood) , steel (metal) and glass
Object Number:
1986-1243 Pt2
type:
components and objective lenses
Image ©
The Board of Trustees of the Science Museum
Weight for Cooke Refracting Telescope

Weight for Cooke Refracting Telescope

Avery weight, 56lb, for refracting telescope by Thomas Cooke.

Measurements:
overall: 25 kg
Object Number:
1986-1243 Pt4
type:
weight
Weight for Cooke Refracting Telescope

Weight for Cooke Refracting Telescope

Avery weight, 56lb, for refracting telescope by Thomas Cooke.

Measurements:
overall: 25 kg
Object Number:
1986-1243 Pt5
type:
weight
Base with Equatorial Mount for Cooke Refracting Telescope

Base with Equatorial Mount for Cooke Refracting Telescope

Painted metal base with equatorial mount, for refracting telescope by Thomas Cooke; though the equatorial mount is not original for this telescope.

Measurements:
overall: 410 kg
Object Number:
1986-1243 Pt6
type:
base and mount