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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| Sao Star Catalog |
Abbreviation for Smithsonian Astrophysical Observatory Star Catalog. This general catalogue contains 259,000 stars down to an approximate magnitude limit of 9. It was published in 1966; the epoch of the positions given is 1950.0.
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