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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| Photographic Zenith Tube Pzt |
A special telescope, mounted vertically, used for the very accurate determination of the positions of stars and for monitoring irregular changes in latitude and time, arising from polar motion and the Earth’s rotation.
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