A new study published in Nature Astronomy describes the most luminous object ever observed by astronomers. It is a black hole with a mass of 17 billion Suns, swallowing a greater amount of mass than the sun every single day.
It has been known about for several decades, but since it is so bright, astronomers assumed it must be a nearby star. Only recent observations revealed its extreme distance and luminosity.
The object has been dubbed J0529-4351. This name simply refers to its coordinates on the celestial sphere—a way of projecting the objects in the sky onto the inside of a sphere. It is a type of object called a quasar.
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