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المشهد العربي
Fastest Star Orbiting Black Hole
Astronomers have managed to discover the fastest known star to date orbiting a black hole, moving at speeds of up to approximately 90 million kilometers per hour around the main black hole at the center of the Milky Way galaxy, known as Sagittarius A*. The star, which has been named "S301," is 50% more massive than the Sun and shines five times brighter. It completes its elliptical orbit in about 8.7 years. Its closest approach to the black hole is roughly 11.5 astronomical units, making it the nearest known star orbiting a supermassive black hole in the galaxy. This discovery may enable scientists for the first time to measure the black hole's rotation at the galaxy's center.
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