First Ever Black Hole Image Released
This entry was posted on April 11, 2019 by Gaz from Cameraworld London Branch.
No, not a picture of the inside of the Blackwall Tunnel, but astronomers have taken the first ever image of a black hole, which is located in a distant galaxy.
The black hole is 500 million trillion km away and was photographed by a network of eight telescopes across the world.
Now for the geeky bits....
It measures 40 billion km across - three million times the size of the Earth - and has been described by scientists as "a monster".
Details have been published today in Astrophysical Journal Letters.
Prof Heino Falcke, of Radboud University in the Netherlands, who proposed the experiment, told BBC News that the black hole was found in a galaxy called M87.
"What we see is larger than the size of our entire Solar System," he said.
"It has a mass 6.5 billion times that of the Sun. And it is one of the heaviest black holes that we think exist. It is an absolute monster, the heavyweight champion of black holes in the Universe."
The image shows an intensely bright "ring of fire", as Prof Falcke describes it, surrounding a perfectly circular dark hole. The bright halo is caused by superheated gas falling into the hole. The light is brighter than all the billions of other stars in the galaxy combined - which is why it can be seen at such distance from Earth.
The edge of the dark circle at the centre is the point at which the gas enters the black hole, which is an object that has such a large gravitational pull, not even light can escape.
This entry was posted in Photography and tagged black hole image, astrophysical journal letters & images released on April 11, 2019 by Gaz from Cameraworld London Branch
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