Traditional Culture Encyclopedia - Photography and portraiture - Can Eton theodolite be installed on other telescopes?
Can Eton theodolite be installed on other telescopes?
Theodolite is the mechanical part of the telescope, which enables the telescope to point in different directions. The theodolite has two perpendicular rotating shafts to adjust the azimuth and horizontal height of the telescope. This kind of bracket has simple structure and low cost, and is mainly used with ground telescopes (geodesy, bird watching, etc.). ). If it is used to observe celestial bodies, it is necessary to rotate two axes at the same time and change the rotation speed with time to track the celestial bodies. However, other celestial bodies in the field of view rotate relative to the target celestial bodies, and unless a mechanism to counteract the rotation of the field of view is added, it is not suitable for long-exposure celestial photography.
However, due to the development of electronic technology, the above problems have been solved, and the theodolite makes the spatial attitude change minimum when the telescope points in different directions. Therefore, many professional observatories use theodolite to reduce the accuracy decline caused by mechanical deformation. Even some astronomy enthusiasts make astronomical telescopes specially for low-power visual observation.
According to the accuracy: DJ07, DJ 1, DJ2, DJ6, DJ30, etc. D and j are the initials of the earth and theodolite respectively.
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