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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| Palomar Observatory |
The observatory on Palomar Mountain in California where the 5-metre 200-inch Hale Telescope is sited. It is owned and operated by the California Institute of Technology Caltech. The other instruments at the observatory are the 1.2-metre 48-inch Oschin Telescope a Schmidt camera, a 46-centimetre 18-inch Schmidt camera and the 1.5-metre 60-inch reflector owned jointly by Caltech and the Carnegie Institution of Washington.
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