Binary star - Wikipedia, the free encyclopedia
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A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star , comes , or se...
en.wikipedia.org/wiki/Binary_star
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We note in this connection that if Jupiter had been about 100 times more massive than it is, it would have formed a star instead of a planet. Thus, maybe the Solar System very nearly became a binary star system instead of a single star with planets.
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csep10.phys.utk.edu/astr161/lect/solarsys/binary.html
csep10.phys.utk.edu/astr161/lect/solarsys/binary.html
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Binary system (astronomy) - Wikipedia, the free encyclopedia
A binary system is an astronomical term referring to two objects in space (usually stars, but also planets, galaxies or asteroids) which are so close that their gravitational interaction causes them...
en.wikipedia.org/wiki/Binary_system_(astronomy)
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SYDNEY: A spectacular, rotating binary star system is a ticking time bomb, ready to throw out a searing beam of high-energy gamma rays – and Earth may be right in the line of fire. ... It could only appear like that if we are looking nearly exactly down on the axis of the binary system," said Tuthill.
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www.cosmosmagazine.com/node/1878
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Explanation: Mizar (sounds like "My Czar") is a binary star. In fact, most stars are binary stars. In a binary star system, each star of the pair follows an elliptical orbital path.
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antwrp.gsfc.nasa.gov/apod/ap970219.html
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At 380 light years distant, the two bright stars of Albireo are comparatively far from each other and take about 75,000 years to complete a single orbit. The brighter yellow star is itself a binary star system, but too close together to be resolved even with a telescope.
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antwrp.gsfc.nasa.gov/apod/binary_stars.html
antwrp.gsfc.nasa.gov/apod/binary_stars.html
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The research group also ran simulations that mimicked Alpha Centauri - the nearest binary system to Earth, where the closest the two stars come is about 11 AU. The secondary star apparently acts like Jupiter does in our solar system - limiting how far out planets can form. ... Planet Found in Tight Binary Star System...
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www.space.com/scienceastronomy/050517_binary_stars.html
www.space.com/scienceastronomy/050517_binary_stars.html
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It orbits the primary star of the binary system (called Gamma Cephei) a little farther out than Mars is from our Sun. The star is about 1.6 times as massive as our Sun. ... Planet Found in Tight Binary Star System ; By SPACE.com Staff; posted: 03:00 pm ET; 09 October 2002;
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www.space.com/scienceastronomy/binary_planet_021009.htm...
www.space.com/scienceastronomy/binary_planet_021009.html
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Consider, for example, the evolution of a binary system with two massive stars, A and B, in which A is the most massive. Because of its greater mass, A will become a red giant star first. As it expands in size, star A will dump a large fraction of its mass onto star B, changing the appearance of both stars.
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chandra.harvard.edu/xray_sources/binary_stars.html
chandra.harvard.edu/xray_sources/binary_stars.html
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