Filar Micrometer

The filar micrometer replaces the eyepiece lens of a telescope and is used to determine the star coordinates. This micrometer was bought in 1890 to be placed on the Starke meridian circle.
Paul Ferdinand Gautier was a famous instrument maker of the end of the 19th c. He constructed the most important instruments of French Observatories of this period.

Micrometer Gautier 1891

Data
Inventory Number: 
AST28
Date: 
1891
Instrument Categories: 
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