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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| Alderamin Alpha Cephei; α Cep |
The brightest star in the constellation Cepheus. It is an A star of magnitude 2.7. The name, which is of Arabic origin, means the right arm.
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