Astronomy Aug. 2017. The black hole is known as Sagittarius A* or Sgr A* and is 4.2 million times more massive than our sun. Supermassive black holes are incredibly dense areas in … Interesting Facts About Black Holes: Scientists estimate that the black hole in the center of our galaxy is four million times the mass of our Sun. 2014: 101. Based off the polarization, he found the magnetic field to be about 2.6 milligauss at 150 light years from A*. Bet you thought the Sun stood still and we just orbited round it. Web. Haynes, Korey. Sagittarius A, the black hole located in the center of the Milky Way is 4 million times more massive than the Sun. ESO’s exquisitely sensitive GRAVITY instrument has added further evidence to the long-standing assumption that a supermassive black hole … "No New Stellar Births In the Galaxy's Center." At the center of our galaxy lies the supermassive black hole Sagittarius A*, often abbreviated Sgr A*. 2014. A close look at the black hole Sagittarius A* in the Milky Way galaxy seen in spectra of X-rays by NASA’s Chandra Observatory. A name is preferred even if its a random made up one by yourself. Based on the lack of high temperature x-rays and the presence of low temperature ones instead, it has been found that A* only “eats” 1% of the matter that surrounds it while the rest gets thrown back into space. This image from NASA's Chandra X-ray Observatory shows the center of our Galaxy, with a supermassive black hole known as Sagittarius A* (Sgr A* for short) in the center. The three panels on the right show changes in brightness caused by an earlier outburst of Sagittarius A*. Discover Apr. Astronomy.com. Sagittarius A* is a Supermassive Black Hole that is the Galactic Centre of our galaxy, the Milky Way. Web. Typically, black holes form when stars collapse and die. It is an area that is extremely violent with sporadic explosions and flaring. As the years progressed scientists noticed that hard x-rays (those having high energy) were also emanating from it and that over 200 stars seemed to orbit it and at a high velocity. Astronomy Feb. 2013: 20. Sagittarius A* is a compact, extremely bright point … The area around the Black Hole is not a very nice place, it is an area of super-heated gas that extends light years away from the centre. TheHuffingtonPost.com, 16 July 2013. Information on Sagittarius A* . Despite this, there is evidence that a star is orbiting very close to Sagittarius A*. Our tech is sensitive, and any heat can cause our instruments to expand, ruining the precise calibrations we need. "Coming Soon: Our First Picture of a Black Hole." Comments may be merged or altered slightly such as if an email address is given in the main body of the comment. That black hole is called Sagittarius A, and the team says that the bizarre objects look like gas and behave like stars. (120). You can decline to give a name which if that is the case, the comment will be attributed to a random star. In addition to Sgr A* more than two thousand other X-ray sources were detected in the region, making this one of the richest fields ever observed. Our solar system is located about 28,000 light years away from Sagittarius A* so we have no worries about being pulled into or destroyed by the supermassive black hole. Astronomers knew something was fishy in the constellation Sagittarius in February of 1974 when Bruce Balick and Robert Brown found that the center of our galaxy (which from our vantage point is in the direction of the constellation) was a source of focused radio waves. Here you would find the 20+ splendid facts about black holes enlightening and intriguing. It lies in the direction of the constellation Sagittarius. Co., 09 Mar. Space! 29 Apr. Astronomy Sept. 2012: 14. If it can be pulled off, then we will witness a gas cloud that is on a course to be consumed by the black hole. "Doomed Gas Cloud Approaches Black Hole." However, to accomplish this around A* should destroy the stars or lose too much angular momentum and fall into A*. Supermassive Black Hole Sagittarius A*. After using the star's orbital properties such as speed and shape of the path traveled and Kepler's Planetary Laws it was found that the object in question had a mass of 4.3 million suns and a diameter of 25 million kilometers. Based on comparable examples across the universe, A* is very quiet, in terms of radiation output. All SMBHs are too far away to see visually. If was a large city, we would be located in the suburbs. "The Benevolence of Black Holes." TheHuffingtonPost.com, 15 Aug. 2013. Though not the only black hole in our galaxy, it is the black hole that appears largest from Earth. Print. Sagittarius A*, supermassive black hole at the centre of the Milky Way Galaxy, located in the constellation Sagittarius. Found by astronomers at the University of California in Los Angeles with the Keck Observatory. But the asteroid would have to be at least 6 miles-wide, otherwise there would not be enough material to be reduced by the tidal forces and friction (Moskowitz “Milky Way," NASA "Chandra," Powell 69, Haynes, Kruesi 33, Andrews "Milky"). Sagittarius A* (pronounced "Sagittarius A-Star", abbreviated Sgr A*) is a bright and very compact astronomical radio source at the Galactic Center of the Milky Way.