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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 Galactic Center is the barycenter of the Milky Way and a corresponding point on the rotational axis of the galaxy. [1] [2] Its central massive object is a supermassive black hole of about 4 million solar masses, which is called Sagittarius A*, [3] [4] [5] a compact radio source which is almost exactly at the galactic rotational center.
The black hole at the center of the Milky Way; second black hole directly imaged (after Messier 87) Messier 32: 1.5 × 10 6 – 5 × 10 6 [112] A dwarf satellite galaxy of the Andromeda Galaxy. NGC 4395: 3.599 × 10 5 [113] May be the smallest supermassive black hole.
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 ...
The black hole is the most massive of its kind ever seen ... and could be just the first of a host of black holes waiting to be found in our Milky Way. ... black holes this big have only ever been ...
STORY: Scientists on Thursday provided the first look at a black hole - one they called the "gentle giant" - lurking at the center of the Milky Way."...Sagittarius A*.”The supermassive ...
Other examples of quasars with large estimated black hole masses are the hyperluminous quasar APM 08279+5255, with an estimated mass of 1 × 10 10 (10 billion) M ☉, [109] and the quasar SMSS J215728.21-360215.1, with a mass of (3.4 ± 0.6) × 10 10 (34 billion) M ☉, or nearly 10,000 times the mass of the black hole at the Milky Way's ...
A view of M87* black hole in polarised light Sagittarius A*, black hole in the center of the Milky Way. The Event Horizon Telescope (EHT) is an active program that directly observes the immediate environment of black holes' event horizons, such as the black hole at the centre of the Milky Way. In April 2017, EHT began observing the black hole ...