19th Century parallactic telescope. 1886 illustration of an astronomer standing next to an astronomical telescope on an equatorial mount. Equatorial m

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19th Century parallactic telescope. 1886 illustration of an astronomer standing next to an astronomical telescope on an equatorial mount. Equatorial mounts are used to compensate for the rotation of earth by having one rotational axis parallel to the Earth's axis of rotation.

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Size: 2514px × 3850px
Photo credit: © COLLECTION ABECASIS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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