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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 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.
Black holes are extraordinarily dense objects with grav. ... powered by a supermassive black hole at the center of a galaxy, is called an "active galactic nucleus." ... or Sgr A*, is located about ...
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 ...
One of the most studied stars is S2, a relatively bright star that also passes close by Sgr A*. As of 2020 [update] , S4714 is the current record holder of closest approach to Sagittarius A*, at about 12.6 astronomical units (1.88 × 10 9 km), almost as close as Saturn gets to the Sun, traveling at about 8% of the speed of light.
Long Beach is a coastal city in southeastern Los Angeles County, California, United States. It is the 44th-most populous city in the United States, with a population of 451,307 as of 2022. [ 11 ] A charter city , [ 3 ] Long Beach is the 7th-most populous city in California , the 2nd-most populous city in Los Angeles County, and the largest city ...
Compton is one of the oldest cities in the county, and on May 11, 1888, was the eighth city in Los Angeles County to incorporate. As of the 2020 census, the city had a total population of 95,740. [10] It is known as the "Hub City" due to its geographic centrality in Los Angeles County. [9]