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Portable reflector telescope
This is a portable reflector telescope by Thomas Wright.
Telescope: The telescope has adjustable inclination and rotary movement as well as primary and secondary specula (mirrors). There is a screw thread for focusing the secondary mirror through use of the rod attatched to the brass barrel. There are attatchments for sighting on each end of the top of the barrel. The instrument has a screw-on eyepiece and brass cap and an object end cap. There is a dolly stick to unscrew the stand.
Stand: The telescope is mounted on a brass pillar with three collapsable claw legs. The stand comes apart from the barrel for storage purposes. The length of the telescope with eye-piece and cap is 410 mm. The diameter of the barrel is 68 mm. The box has a brass lock but the key is missing. The telescope is in good condition.
Telescope: The telescope has adjustable inclination and rotary movement as well as primary and secondary specula (mirrors). There is a screw thread for focusing the secondary mirror through use of the rod attatched to the brass barrel. There are attatchments for sighting on each end of the top of the barrel. The instrument has a screw-on eyepiece and brass cap and an object end cap. There is a dolly stick to unscrew the stand.
Stand: The telescope is mounted on a brass pillar with three collapsable claw legs. The stand comes apart from the barrel for storage purposes. The length of the telescope with eye-piece and cap is 410 mm. The diameter of the barrel is 68 mm. The box has a brass lock but the key is missing. The telescope is in good condition.
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Object Details
| ID: | AST0936 |
|---|---|
| Collection: | Astronomical and navigational instruments |
| Type: | Telescope |
| Display location: | Display - ROG |
| Creator: | Wright, Thomas |
| Date made: | 1720-1730; 1720-30 |
| Credit: | National Maritime Museum, Greenwich, London, Caird Collection |
| Measurements: | Box: 360 x 345 mm |
| Parts: | Portable reflector telescope |
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