Double image micrometer [1]
Double image micrometer
Origin:
Location:
Maker:
Date:
1956
English
Inventory Number:
AST22
Instrument Categories:
- Astronomy [4]
This double image micrometer is used to measure small angular distances (double stars, planets). It was fixed on the Dorides telescope (Gautier refractor of the National Observatory of Athens) and after 1961 on the Newall telescope in Pendeli Observatory (North of Athens).