Скачать или смотреть Discovery: Bruce A* is located near the border of the Sagittarius A*  talking about Sagittarius Asub

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Discovery: Bruce Balick and Robert L. Brown discovered Sagittarius A* in 1974. Brown added the asterisk in 1982 to distinguish the compact radio source from the larger Sagittarius A region. 

 



Location: Sagittarius A* is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic. 

 



Mass: Sagittarius A* has an estimated mass millions of times that of the Sun. 

 





Radio waves: Sagittarius A* is a strong source of radio waves. 

 



Event horizon: The event horizon of the black hole has a radius of 12 million km (7 million miles). 

 



Observations: In 2015, NASA observed an X-ray flare from Sagittarius A* that was 400 times brighter than usual. 

 



Image: In May 2022, the Event Horizon Telescope released the first image ever taken of Sagittarius A*.