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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| Schã¶Nberg-Chandrasekhar Limit |
The upper limit on the mass of hydrogen that can be converted to helium in the core of a main-sequence star before core burning ceases and hydrogen burning moves to a shell around the core. The limit is about 12 per cent of the star’s original mass.
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