Small heliostat on mahogany base/stand with clockwork drive
- maker:
- Spencer & Son
small heliostat on mahogany base/stand with clockwork drive, by Spencer and Son, Dublin, c.1880., owned and used by Sir William Abney, Royal Engineers, incomplete, lacks mirror
Details
- Category:
- Astronomy
- Object Number:
- 1921-106
- Materials:
- mahogany (wood), metal, brass (copper, zinc alloy), iron and glass
- Measurements:
-
overall: 210 mm x 405 mm x 165 mm, , 2.635kg
- credit:
- Lady Abney