Two cell photometer, Unknown Artist | Artsupp

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Zenithal telescope

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Two cell photometer

Anonymous

Displayed in:

Astronomical Observatory of Abruzzo

Via Mentore Maggini, Teramo

Closed now: open at 09:00

Verified profile

An airtight cylindrical chamber containing the two cells, one with rubidium (Rb) and the other with sodium (Na), which receive the light through a two prism positions; the two Lindemann electrometers (meters) are enclosed in the underlying rectangular chamber, which also acts as an electrostatic screen and as a support for the 2 microscopes. The operating principle is to transform the starlight into an electrical signal, thus allowing an objective and precise measurement of the luminosity of the stars and its variations.

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Details

Title: Two cell photometer

Author: Anonymous

Date: 1930

Technique:

Displayed in: Astronomical Observatory of Abruzzo

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