Double image micrometer

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).

Data

Inventory Number: 

AST22

Date: 

1956

Maker: 

Instrument Categories: 

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