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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| Purple Mountain Observatory |
An observatory of the Chinese Academy of Sciences, located on the Purple Mountain near the city of Nanking. It was constructed between 1929 and 1934. The instruments located there include a 43-centimetre 17-inch Schmidt camera, a 1.5-metre 5-foot radio dish for solar observations, a 20-centimetre 8-inch refractor, a 60-centimetre 24-inch reflector and a 40-centimetre 16-inch twin refractor used for planetary work.
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