Which statement accurately describes binary star systems
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A binary star is a star system consisting of two stars orbiting around their common barycenter. Systems of two or more stars are called multiple star systems. These systems, especially when more distant, often appear to the unaided eye as a single point of light, and are then revealed as multiple by other means.

A star system consists of two star orbiting around their common barycenter. Systems with two or more stars are usually called multiple star systems.

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the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying