Cooke Reversible Transit Circle

Cooke Reversible Transit Circle, manufactured by Cooke, Troughton & Simms Ltd, York c.1928 for the Royal Observatory, Greenwich. Used to measure positions of stars and planets at Greenwich (1933-post WWII), Herstmonceux (post WWII-1982) and Brorfelde Observatory, Denmark.

Details

Category:
Astronomy
Object Number:
2005-117
type:
transit circle
credit:
Particle Physics and Astronomy Research Council

Parts

Cooke Reversible Transit Circle Telescope

Cooke Reversible Transit Circle Telescope

Main telescope and two wooden rods for the Cooke Reversible Transit Circle.

Measurements:
overall: 900 mm x 1400 mm x 3050 mm, 770 kg
Object Number:
2005-117/1
type:
telescope
Mounting for the Transit Circle Hook and Micrometer Eyepieces

Mounting for the Transit Circle Hook and Micrometer Eyepieces

Mounting for the hook and micrometer eyepieces for the Cooke Reversible Transit Circle.

Measurements:
overall: 750 mm x 1050 mm x 1850 mm, 488 kg
Object Number:
2005-117/2
type:
mounting
Mounting for the Transit Circle Hook and Micrometer Eyepieces

Mounting for the Transit Circle Hook and Micrometer Eyepieces

Mounting for the hook and micrometer eyepieces for the Cooke Reversible Transit Circle.

Measurements:
overall: 750 mm x 1100 mm x 1900 mm, 501.5 kg
Object Number:
2005-117/3
type:
mounting
Cooke Reversible Transit Circle Collimating Telescopes

Cooke Reversible Transit Circle Collimating Telescopes

Two collimating telescopes with four stands for the Cooke Reversible Transit Circle.

Measurements:
overall: 500 mm x 850 mm x 2750 mm, 340 kg
Object Number:
2005-117/4
type:
telescope
Cooke Reversible Transit Circle Reversing Carriage

Cooke Reversible Transit Circle Reversing Carriage

Reversing carriage for the Cooke Reversible Transit Circle.

Measurements:
overall: 1950 mm x 800 mm x 1400 mm, 346 kg
Object Number:
2005-117/5
type:
reversing carriage
Cooke Reversible Transit Circle Pier

Cooke Reversible Transit Circle Pier

Pier for the Cooke Reversible Transit Circle.

Measurements:
overall: 700 mm x 1150 mm x 2000 mm, 1100 kg
Object Number:
2005-117/6
type:
pier
Cooke Reversible Transit Circle Pier

Cooke Reversible Transit Circle Pier

Pier for the Cooke Reversible Transit Circle.

Measurements:
overall: 700 mm x 1150 mm x 2000 mm, 1100 kg
Object Number:
2005-117/7
type:
pier
Cooke Reversible Transit Circle Level Base and Azimuth Base.

Cooke Reversible Transit Circle Level Base and Azimuth Base.

Level base plate and Azimuth base plate for the Cooke Reversible Transit Circle with a sheet of clear plastic and an open ended metal cylinder .

Measurements:
overall: 1000 mm x 1900 mm x 2900 mm,
Object Number:
2005-117/8
type:
base
Floating Glass Circle for Cooke Reversible Transit Circle

Floating Glass Circle for Cooke Reversible Transit Circle

Floating Glass Circle for Cooke Reversible Transit Circle.

Measurements:
overall: 70 mm x 780 mm x 790 mm, 13.5 kg
Object Number:
2005-117/9
type:
glass circle
Components for Cooke Reversible Transit Circle

Components for Cooke Reversible Transit Circle

Two electrical boxes, two switch boxes mounted on wood, two semi-circular metal components, a green circular collar with wooden handles and a bag of bolts for the Cooke Reversable Transit Circle.

Measurements:
overall: 150 mm x 1000 mm x 1200 mm, 28 kg
Object Number:
2005-117/10
type:
components
Components for Cooke Reversible Transit Circle

Components for Cooke Reversible Transit Circle

Eleven rods, a metal ring, a solid metal disc and three cylindrical metal fixtures for the Cooke Reversible Transit Circle.

Measurements:
overall: 200 mm x 1000 mm x 1200 mm, 73 kg
Object Number:
2005-117/11
type:
components
Components for Cooke Reversible Transit Circle

Components for Cooke Reversible Transit Circle

Twelve metal fittings labelled individually from A to H and J to M two of which have focal plane cameras attached, a metal spring, a green metal cap with handles, and two green metal brackets one with electrical components, all for the Cooke Reversible Transit Circle.

Measurements:
overall: 230 mm x 800 mm x 1200 mm, 135 kg
Object Number:
2005-117/12
type:
components
Components for Cooke Reversible Transit Circle

Components for Cooke Reversible Transit Circle

A wooden mercury bath with lid, four wooden boards, one metal ring, eight metal sheets two with switches attached, for the Cooke Reversible Transit Circle.

Measurements:
overall: 100 mm x 1000 mm x 1180 mm, 30 kg
Object Number:
2005-117/13
type:
components
Components for Cooke Reversible Transit Circle

Components for Cooke Reversible Transit Circle

Four curved wooden sheets, twelve flat wooden sheets, a wooden board with circular holes, three metal rings, two metal fittings, a small bag of assorted components, one wooden and two metal boxes of assorted components, and a cardboard box of focal plane cameras broadly lettered individually from A to M, for the Cooke Reversible Transit Circle.

Measurements:
overall: 250 mm x 800 mm x 1200 mm, 84 kg
Object Number:
2005-117/14
type:
components
Components for Cooke Reversible Transit Circle

Components for Cooke Reversible Transit Circle

Four metal stands and a large adjustable metal collar for the Cooke Reversible Transit Circle.

Measurements:
overall: 300 mm x 1000 mm x 1200 mm, 109 kg
Object Number:
2005-117/15
type:
components
Components for Cooke Reversible Transit Circle

Components for Cooke Reversible Transit Circle

A wooden box containing lenses, seven metal fittings, a metal tube, a metal ring, three boxes of various electrical components and bolts and screws, a wooden board on metal strips, various rings, tubes, nuts, bolts and screws all bagged, and an electrical metal fixture for the Cooke Reversible Transit Circle.

Measurements:
overall: 400 mm x 800 mm x 1200 mm, 108 kg
Object Number:
2005-117/16
type:
components