Question

What is the mass of j2157??​

Answer 1

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Around 20 billion solar masses .

(J2157 for short), which is billions of light-years away from us. At the time when the black hole was discovered, it had a mass of around 20 billion solar masses and had an accretion rate of at least half a solar mass a day.

Answer 2

Answer:

The mass of j2157 is around 20 billion solar masses.

Explanation: