Filar micrometer [1]
AST05
Origin:
Location:
Maker:
Casella, L. [3]
Date:
1860 (c.)
Dimensions:
Length : 24cm, Width : 18cm, Height : 5cm
English
Inventory Number:
AST05
Instrument Categories:
- Astronomy [4]
- Time and Longitude [5]
The micrometer goes with 6 eyepiece lenses for various magnifications. Fixed on a telescope it is used to measure angular distances.
L. Casella provided astronomical instruments to the British Navy during the second half of the 19th c.