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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 black hole and star orbit the system barycentre every 11.6 years, with an orbital distance ranging from 4.5–29 AU. [3] The black hole's mass is 32.70 M ☉, the heaviest known stellar black hole in the Milky Way. The black hole Gaia BH3 is the second known stellar black hole more massive than about 10 M ☉ (with the first being Cygnus X-1).
The Milky Way may contain ten billion white dwarfs, a billion neutron stars, and a hundred million stellar black holes. [ f ] [ 154 ] [ 155 ] Filling the space between the stars is a disk of gas and dust called the interstellar medium .
The supermassive black hole at the center of our Milky Way ... researchers studying 15 years of observed data from the cluster found that what they thought was one star was in fact a stellar pair ...
The world's first image of the chaotic supermassive black hole at the center of our Milky Way galaxy doesn't portray a voracious cosmic destroyer but what astronomers Thursday called a “gentle ...
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.
Astronomers on Wednesday announced that they have detected a strong and organized magnetic field twisted in a spiral pattern around the Milky Way's supermassive black hole, revealing previously ...
OJ 287 core black holes — a BL Lac object with a candidate binary supermassive black hole core system [23] PG 1302-102 – the first binary-cored quasar — a pair of supermassive black holes at the core of this quasar [24] [25] SDSS J120136.02+300305.5 core black holes — a pair of supermassive black holes at the centre of this galaxy [26]