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.
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| Krüger 60 |
A faint binary star in the constellation Cepheus. The two members of the system, magnitudes 10 and 11, orbit each other in a period of 44 years. Since the orbit is seen face on and the two stars are easily resolved, the relative motion shows clearly in photographic sequences taken over a period of decades. Both are dwarf M stars and the fainter component is a flare star. At a distance of 13 light years, it is one of the nearest stars to the solar system.
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