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 Sky Survey |
A photographic atlas of the whole sky north of declination -30° consisting of wide-field plates taken with the 1.2-metre 48-inch Schmidt camera the Oschin Telescope at Palomar Observatory. There are two plates, one taken in red light and one in blue, for each area of sky.
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