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Sagittarius A*, abbreviated as Sgr A* (/ ˈ s æ dʒ ˈ eɪ s t ɑːr / SADGE-AY-star [3]), is the supermassive black hole [4] [5] [6] 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, [7] visually close to the Butterfly Cluster (M6) and Lambda Scorpii.
Webb, which was launched in 2021 and began collecting data in 2022, is enabling astronomers to observe the region around the black hole - called Sagittarius A*, or Sgr A* - for extended periods ...
The supermassive black hole Sagittarius A*, imaged by the Event Horizon Telescope [11] Astronomers now have evidence that there is a supermassive black hole at the center of the galaxy. [12] Sagittarius A* (abbreviated Sgr A*) is agreed to be the most plausible candidate for the location of this supermassive black hole.
An artist’s illustration depicts the supermassive black hole at the center of the Milky Way galaxy, known as Sagittarius A*. It’s surrounded by a swirling accretion disk of hot gas and dust.
Black holes are extraordinarily dense objects with grav ... powered by a supermassive black hole at the center of a galaxy, is called an "active galactic nucleus." ... or Sgr A*, is located about ...
In 1999 a violent outburst at V4641 Sgr was thought to have revealed the location of the closest known black hole to Earth, [22] but later investigation increased its estimated distance by a factor of 15. [23] The complex radio source Sagittarius A is also in Sagittarius, near its western boundary with Ophiuchus.
A black hole with the mass of a car would have a diameter of about 10 −24 m and take a nanosecond to evaporate, during which time it would briefly have a luminosity of more than 200 times that of the Sun. Lower-mass black holes are expected to evaporate even faster; for example, a black hole of mass 1 TeV/c 2 would take less than 10 −88 ...
The newly identified black hole is located about 2,000 light-years from Earth - relatively close in cosmic terms - in the constellation Aquila, and has a companion star orbiting it, researchers ...