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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.
IGR J17091-3624 (candidate smallest known stellar black hole) [14] [15] LB-1 (name of both a galactic B-type star and a very closely associated over-massive stellar-mass black hole ) [ 16 ] [ 17 ] M33 X-7 (stellar black hole with the most massive stellar companion, located in the Triangulum Galaxy) [ 18 ]
The Black Hole at the Center of the Milky Way; The dark heart of the Milky Way; Animation showing orbits of stars near the center of the Milky Way galaxy; Zooming in on the center of the Milky Way; Dramatic Increase in Supernova Explosions Looms; APOD: Journey to the Center of the Galaxy; A Galactic Cloud of Antimatter; Fast Stars Near the ...
There could be 300 million planets in the Milky Way Galaxy that support life, according to NASA estimates. The planets are all rocky, similar in size to Earth and orbit in the “Goldilocks zone ...
The Milky Way's spiral structure is uncertain, and there is currently no consensus on the nature of the Milky Way's arms. [212] Perfect logarithmic spiral patterns only crudely describe features near the Sun, [ 210 ] [ 213 ] because galaxies commonly have arms that branch, merge, twist unexpectedly, and feature a degree of irregularity.
At the center of the Milky Way galaxy resides a supermassive black hole four million times the mass of our sun called Sagittarius A* that some scientists have called a gentle giant because of its ...
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.
Astronomers have discovered a black hole with a mass about 33 times greater than that of our sun, the biggest one known in the Milky Way aside from the supermassive black hole lurking at the ...