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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| S Doradus Star |
Alternative name for P Cygni star.
S Doradus itself is an irregular variable star in the Large Magellanic Cloud, and is currently eleventh magnitude. It has a very high mass, estimated to be about 60 times the mass of the Sun, and is as luminous as a powerful nova.
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