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Atmosphere transparency measuring instrument

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Inventory Number: 
AST15
Atmosphere transparency measuring instrument

"Keilsichtmesser nach Prof. Dr Wigand"
Dr A. Wigand developed in the 1910ies a method for measuring the transparency of the atmosphere. The instrument comprises a prism with varying density.
Serial No 100762

Data
Date: 
1920 (c.)
Origin: 
National Observatory of Athens
Location: 
National Observatory of Athens
Maker: 
Fuess, R.

Copyright National Hellenic Research Foundation - National Observatory of Athens