Object-glass of 90ft. focal length which belonged to Flamsteed. Presented to the R.S. by James Hodgson, F.R.S., in 1737. R.S. no.25, no case. Diameter varies from about 9 3/4"to 9 7/8". Chipped at edge and badly scratched on one face 5/16" thick. Thought to be the object glass from Flamsteed's well telescope.
Details
- Category:
- Astronomy
- Object Number:
- 1932-460
- Materials:
- glass
- type:
- components and objective lenses
- credit:
- The Royal Society