Astronomical Tidbit: Three of every two stars you see in the sky are members of a binary star system, two stars orbiting each other. Binaries play important roles in a wide variety of phenomenon affecting the evolution of galaxies, including core collapse in globular clusters. Some close together binaries exchange gas between the pair, altering the evolution of each.
Note: the color difference in the first image, indicating different temperatures of their atmospheres.
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Binary Star Systems: Classification and Evolution
In the binary system J0806, two white dwarf stars orbit one another every 321 seconds. Scientists think the stars, about 1,600 light-years away, are spiraling in toward one another and will eventually merge.
Credit: NASA/Tod Strohmayer (GSFC)/Dana Berry (Chandra X-Ray Observatory)
More than four-fifths of the single points of light we observe in the night sky are actually two or more stars orbiting together. The most common of the multiple star systems are binary stars, systems of only two stars together.
Spinliesel
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Apr 17, 2018
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