researchers from Event horizon telescope (Event horizon telescope or ENTin English), the same ones who published the first photo Black hole in 2019 they released the first image of Sagittarius A*, massive black hole located at the center of the Milky Way, the galaxy where our solar system.

A black hole is 60 million kilometers across

With a total diameter – the sum of the hole and light – equivalent to the diameter of Mercury’s orbit around the Sun (60 million kilometers), massive black hole located at a distance of 26,000 light years from solar system. Although this is not the first photograph of this type of celestial body, it is special for another reason: it is Black hole from “our backyard”, as Heino Falke, one of the scientists involved in the project, said ENT.

Credits: Disclosure/EHT.

OUR the black hole itself, the body in the center of the image that “sucks” the light, has a diameter of 24 million kilometers. In the photo above, we also see the event horizon, or the point of no return. The “border” at which particles do not escape gravitational attraction Black hole. This part is located around the center of the image (where heavenly body). Illuminated part of the city accretion disk it is a light that gains energy.

Why is it difficult to photograph a black hole?

Difficulty registering a photo Black hole what happens, very simplistic, is that it’s a black “color” object, with no light, and that it’s in a space that… has the same “color” as it. In fact, the lack of light makes everything dark. But I’ll try to be more edifying in comparison: you’re flying over a snow-covered region of the Arctic and you want to watch an arctic fox. It will be very hard to find based on sight alone, but you can spot it by its interaction with its habitat, whether it’s snow moving through an animal’s gait or with a thermal imaging camera (remember, we’re giving an example and comparing). With black holes the essence is similar: you see how the light “twirls”, or you detect its radiation.

One of the first known black holes is bigger than thought
The new discovery about Cygnus X-1 has been widely used as a reference, leading to changes in some astronomical models.

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Source: BBC