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Qu'est-ce (qui) est equatorial mount - définition

MOUNTING SYSTEM FOR CAMERA OR TELESCOPE

Equatorial mounting; German equatorial mount; English mounting; Yoke mounting; Fork mounting; German mounting; Horseshoe mounting; English mount; Equatorial telescope; Equatorial instrument; Declination axis; Polar axis; Open fork mount

equatorial mount

(also equatorial mounting)

¦ noun Astronomy a telescope mounting with one axis aligned to the celestial pole, which allows the movement of celestial objects to be followed by motion about this axis alone. Compare with altazimuth (in sense 1).

Equatorial mount

An equatorial mount is a mount for instruments that compensates for Earth's rotation by having one rotational axis, the polar axis, parallel to the Earth's axis of rotation. This type of mount is used for astronomical telescopes and cameras.

https://en.wikipedia.org/wiki/Equatorial_mount

equatorial telescope

¦ noun an astronomical telescope on an equatorial mount.

Wikipédia

Equatorial mount

An equatorial mount is a mount for instruments that compensates for Earth's rotation by having one rotational axis, the polar axis, parallel to the Earth's axis of rotation. This type of mount is used for astronomical telescopes and cameras. The advantage of an equatorial mount lies in its ability to allow the instrument attached to it to stay fixed on any celestial object with diurnal motion by driving one axis at a constant speed. Such an arrangement is called a sidereal or clock drive. Equatorial mounts achieve this by aligning their rotational axis with the Earth, a process known as polar alignment.

https://en.wikipedia.org/wiki/Equatorial mount