Sagittarius A*
The supermassive black hole at the center of the Milky Way, with a mass of roughly 4.3 million solar masses, confirmed through radio astronomical observations.
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The Galactic Center usually refers to the innermost region of the Milky Way spanning tens of thousands of light-years, containing three key layers: the nuclear bulge, the nuclear star cluster, and Sagittarius A*.
Sagittarius A* is the supermassive black hole at the center of the Milky Way, about 4.3 million times the mass of the Sun, whose position was first confirmed by radio astronomical observations in 1974.
The Schwarzschild radius of Sagittarius A* is about 12 million kilometers, and its event horizon diameter is about 24 million kilometers, which could fit inside Mercury's orbit.
Sagittarius A* accounts for only about one ten-thousandth of the mass of the surrounding nuclear bulge, and its accretion rate is extremely low, making its power far inferior to that of active galactic nuclei.
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The Galactic Center usually refers to the innermost region of the Milky Way spanning tens of thousands of light-years, containing three key layers: the nuclear bulge, the nuclear star cluster, and Sagittarius A*.
50%UnverifiedSagittarius A* is the supermassive black hole at the center of the Milky Way, about 4.3 million times the mass of the Sun, whose position was first confirmed by radio astronomical observations in 1974.
50%UnverifiedThe Schwarzschild radius of Sagittarius A* is about 12 million kilometers, and its event horizon diameter is about 24 million kilometers, which could fit inside Mercury's orbit.
50%UnverifiedSagittarius A* accounts for only about one ten-thousandth of the mass of the surrounding nuclear bulge, and its accretion rate is extremely low, making its power far inferior to that of active galactic nuclei.
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