Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.
There are 2759 entries in this glossary.| Term | Definition |
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| Serrurier System |
A structure for the open tube of a large reflecting telescope, designed to allow equal degrees of flexure when the orientation of the telescope is changed. It is impossible to make a completely rigid tube for the largest telescopes. The solution proposed by Mark Serrurier for the design of the 200-inch Hale Telescope tube was to allow flexure in such a way that the optical alignment is not disturbed.
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