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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.
The supermassive black hole Sagittarius A*, imaged by the Event Horizon Telescope [8] Astronomers now have evidence that there is a supermassive black hole at the center of the galaxy. [9] Sagittarius A* (abbreviated Sgr A*) is agreed to be the most plausible candidate for the location of this supermassive black hole.
The inferred orbits of stars around supermassive black hole candidate Sagittarius A* at the Milky Way's center are according to Gillessen et al. 2017, [3] with the exception of S2 which is from GRAVITY 2019, [4] S62 which is from Peißker et al. Jan 2020, [5] and S4711 up to S4715, which are also from Peißker et al., Aug 2020.
Black holes are extraordinarily dense objects with grav. ... Sagittarius A*, or Sgr A*, is located about 26,000 light-years from Earth. Could it, too, suddenly roar to life?
At the heart of our Milky Way galaxy lurks a supermassive black hole about four million times the mass of the sun, called Sagittarius A*. But since NASA's James Webb Space Telescope came online in ...
Another study from June of 2023 reported an X-ray echo that pointed to the idea that the Milky Way’s black hole, Sagittarius A* (Sgr A*), had experienced its own flare up some 200 years ago.
The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list.. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms.
S2, also known as S0–2, is a star in the star cluster close to the supermassive black hole Sagittarius A* (Sgr A*), orbiting it with a period of 16.0518 years, a semi-major axis of about 970 au, and a pericenter distance of 17 light hours (18 Tm or 120 au) – an orbit with a period only about 30% longer than that of Jupiter around the Sun, but coming no closer than about four times the ...