Scientists reveal the first image of a black hole in the center of the Milky Way

It is another photographed. The first was in 2019 at the Messier 87 galaxy.

Scientists today unveiled the first image of a black hole called Sagittarius in the center of our Milky Way A * or SgrA * galaxy. this is only the second described. The first was in 2019 at the Messier 87 galaxy.

The work was achieved by Event Horizon Telescope (EHT), which also revealed in 2019

first photo from the first black hole.

Sagittarius A * has 4 million times the mass of our sun and is located about 26,000 light-years from Earth, where light travels in a year.

Black holes are exceptionally dense objects whose gravity is so strong that not even light can escape. When it reaches the black hole, it is a point – stars, planets, gas, dust and all kinds of electromagnetic radiation would sweep away and disappear.

Researchers in the project are looking for a ring of light – an overheated substance orbiting at high speed at the edge of the horizon – from the volume of the zone of darkness that represents a true black hole. This is called a black hole shadow or silhouette.

The Milky Way is a spiral galaxy of which the solar system is a part. Seen from above or below, it resembles a rotating weathervane, with the sun located in one of the spiral branches and Sagittarius A * in the middle.

The 2019 image of a supermassive black hole in a galaxy called Messier 87 or M87 showed a glowing red, yellow and white ring around the dark center. The black hole M87 is much more distant and massive than Sagittarius A *, located about 54 million light-years from Earth.

The researchers pointed out that although Sagittarius A * was much closer to our solar system than M87, it was harder to visualize.

Sagittarius A * is about 17 times the diameter of the Sun, which means it is in the solar orbit of the planet Mercury. In contrast, the diameter of the M87 covers our entire solar system.

“Sagittarius A * is more than a thousand times less massive than the black hole in M87, but because it’s in our own galaxy, it’s much closer and should look a little bigger in the sky,” said astronomer Lindy Blackburn, an EHT expert. .

“However, the smaller size of the Sgr A * also means that it is about a thousand times faster than the M87.

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