Experimental compound speculum mirror of 2 feet diameter
- 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 and mirror, speculum metal (bronze alloy)
- Measurements:
-
overall: 85 x 600 mm
- credit:
- Lord Rosse (5th Earl)
