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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
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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

Small spring-loaded clock with pendulum oscillator beating half seconds, with brass escape wheel, anchor-type escapement with steel pawl. The dial, with a diameter of 10 cm in silver-plated brass, is divided into minutes shown on the outer margin, the hours in Roman numerals are shown inside, in an eccentric position, in the upper part, a small dial with a diameter of 3 cm shows the seconds scored ten by ten. The oscillation period of the pendulum can be adjusted by unscrewing or screwing a ring nut positioned on the rod which determines the displacement of the burnished metal lens along the suspension rod. The electrical contacts with which this pendulum is equipped were used to electrically synchronize other pendulums and record the whole seconds on the chronograph. The cabinet containing the instrument is made of walnut wood.

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