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Eyes on the Skies — Equatorial mount

This 3D animation shows how an equatorial mount works. In order for the telescope to track the movement of a star in the sky, it only needs to be rotated on one axis, represented with the red line. Compare it with the alt-azimuth mount.

This animation is part of the movie Eyes on the Skies. Read more about it on http://www.eyesontheskies.org/.

You can also find the Eyes on the Skies in the ESOshop:

Bildnachweis:

ESA/Hubble (M. Kornmesser & L. L. Christensen)

Usage of ESO Images, Videos, Web texts and Music