Auto-registering Micrometer

This Auto-registering Micrometer was used to register stars transits at the Sygros (Gautier) Meridain Circle of the Observatory.
The Photoelecric Photometer attached to the Micrometer (right on the photo) is a G. Rougier model (c. 1925).

Similar instruments:
Observatoire de Paris (Paris inv. 396, anc. 20-28)
Musée de l'Observatoire de Marseille (CM31 IM13000021)

Data

Inventory Number: 

AST82

Date: 

1930

Maker: 

Instrument Categories: 

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