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Summary
DescriptionEso2208-eht-mwe.tif
English: Size comparison of the two black holes imaged by the Event Horizon Telescope (EHT) Collaboration: M87*, at the heart of the galaxy Messier 87, and Sagittarius A* (Sgr A*), at the centre of the Milky Way. The image shows the scale of Sgr A* in comparison with both M87* and other elements of the Solar System such as the orbits of Pluto and Mercury. Also displayed is the Sun’s diameter and the current location of the Voyager 1 space probe, the furthest spacecraft from Earth. M87*, which lies 55 million light-years away, is one of the largest black holes known. While Sgr A*, 27 000 light-years away, has a mass roughly four million times the Sun’s mass, M87* is more than 1000 times more massive. Because of their relative distances from Earth, both black holes appear the same size in the sky.
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Captions
Comparison of the sizes of two black holes: M87* and Sagittarius A*
Grössenvergleich von zwei schwarzen Löchern: M87* und Sagittarius A*
Comparaison des tailles de deux trous noirs : M87* et Sagittarius A*
Comparación de los tamaños de dos agujeros negros: M87* y Sagitario A*