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 |
|---|---|
| Zz Ceti Star |
A pulsating, variable white dwarf star. The amplitude of variation of ZZ Ceti stars is between 0.05 and 0.3 magnitude, and their periods range between 30 seconds and half an hour.
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