Experimental compound speculum mirror

Made:
1840-1845 in Birr
maker:
William Parsons

Experimental compound speculum mirror of 2 feet diameter, made by the 3rd Earl of Rosse. The 9 segments of speculum metal, are held in an alloy of copper and zinc.

Details

Category:
Astronomy
Object Number:
1876-1008
Materials:
base, iron, mirror, speculum metal (bronze alloy)
type:
metal mirrors
credit:
Lord Rosse (5th Earl)

Cite this page

Rights

We encourage the use and reuse of our collection data.


Data in the title, made, maker and details fields are released under Creative Commons Zero


Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data

Download

Download catalogue entry as json

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.