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Astronomical Observatory of Abruzzo verified

Teramo, Abruzzo, Italy closed Visit museumarrow_right_alt

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Cooke and Sons astrograph
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Cook and Sons astrograph
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Cooke and Sons photographic camera
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Thornton Pickard photographic camera
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Cavignato chronograph
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Fuess chronograph
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Barraud marine chronometer
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Two cell photometer
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One cell photometer
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Stellar interferometer
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Sundial at Babylonian hours
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Sundial at Italic hours
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Micrometro
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Grubb wire micrometer
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Pendulum A. Kittel
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Pendulum Cavignato and Mioni
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Kobell pendulum
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Riefler pendulum
fullscreen
Pendulum Riefler and Secchi
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Browning prism spectroscope
fullscreen
Browning prism spectroscope
fullscreen
Instrument of the Repsold and Soehne passages
fullscreen
Zenithal telescope
fullscreen
Cooke and Sons refractor telescope
fullscreen
Salmoiraghi refractor telescope
Cooke and Sons astrograph
Cook and Sons astrograph
Cooke and Sons photographic camera
Thornton Pickard photographic camera
Cavignato chronograph
Fuess chronograph
Barraud marine chronometer
Two cell photometer
One cell photometer
Stellar interferometer
Sundial at Babylonian hours
Sundial at Italic hours
Micrometro
Grubb wire micrometer
Pendulum A. Kittel
Pendulum Cavignato and Mioni
Kobell pendulum
Riefler pendulum
Pendulum Riefler and Secchi
Browning prism spectroscope
Browning prism spectroscope
Instrument of the Repsold and Soehne passages
Zenithal telescope
Cooke and Sons refractor telescope
Salmoiraghi refractor telescope

Other works on display

Description

The dry electromagnetic chronograph is an instrument used for recording on a paper strip the instant in which the passage of a celestial body under observation on the meridian took place. The instrument is mainly made up of two parts: a device for advancing the paper (at constant speed) and a writing tip system. The recording takes place through two arms, with points that pierce the paper, controlled by electromagnets: one connected to a clock (marks the seconds) and the other controlled by the observer marks the instant of the astronomical phenomenon. This tool was used in conjunction with the passing tool.

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