Dictionary

Telescope mount

Telescope mount


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It is the structure that serves to hold the telescope tube and that allows operations to focus and follow a celestial body.

The mounts are of two fundamental types: altacimuthal and equatorial.

The altacimuthal mount refers to the celestial altacimuthal coordinate system. The instrument is free to move independently in height, that is, from top to bottom; and in azimuth, that is, right and left. This requires continuous adjustment in order to follow the trajectory of the star.

The equatorial mount, on the other hand, refers to the equatorial celestial coordinate system. An axis of the telescope, called a schedule, is aligned with the axis of the Earth and can have a small motor that makes it perform a complete turn in 24 hours; The other axis, called declination, is to regulate the first. Once a star is focused and the engine is started, the telescope tube automatically follows the movement of the celestial vault and the focused object will remain fixed inside the visual field. For this reason the equatorial mount finds its most effective use in astrophotography, from the moment it allows long exposures. There are several designs of equatorial mounts, the most widespread are German, English and fork.


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Monte Wilson (observatory)Own movement

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