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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 the supermassive black hole 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?
Instead, it was discovered in 2009 that the density of the old stars peaks at a distance of roughly 0.5 parsec from Sgr A*, then falls inward: instead of a dense cluster, there is a "hole", or core, around the black hole. [52] Several suggestions have been put forward to explain this puzzling observation, but none is completely satisfactory.
A supermassive black hole (SMBH or sometimes SBH) [a] is the largest type of black hole, ... [90] for the supermassive black hole in Sgr A* at the center of the Milky ...
A Washington, D.C. man has been charged with murder after police say he stabbed his grandmother to death and then texted a photograph of her dead body to other family members last Friday.
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 ...