Sagittarius A*
Astronomical observation
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Sagittarius A*, abbreviated Sgr A*, is the supermassive black hole at the Galactic Center of the Milky Way. Viewed from Earth, it is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic, visually... Wikipedia
Distance to Earth: 26,670 light years
Radius: 7.4565 million mi
Discovered: February 13, 1974
Coordinates: RA 17h 45m 40s | Dec -29° 0′ 28″
Discoverers: Reinhard Genzel, Harry Clive Minnett, Robert Brown, and more
Constellation: Sagittarius
Mass: 8.54×1036 kg; 4.297×106 M☉