Which Is the Largest Black Hole, Ton 618 or Phoneix A?

Check out this answer from Consensus:

Based on the provided research data, the black hole in the Phoenix cluster (Phoenix A) is suggested to have a mass of around $10^{11} M_\odot$, making it larger than TON 618.

Massive black holes (MBHs) are some of the most intriguing objects in the universe, with masses ranging from millions to billions of solar masses. Among the most massive known are TON 618 and the black hole in the Phoenix cluster (Phoenix A). This synthesis aims to determine which of these two black holes is larger based on the provided research data.

Key Insights

• Massive Black Holes in the Universe:
  • MBHs, weighing billions of solar masses, powered luminous quasars within the first billion years of the Universe1.
  • Dynamical evidence indicates that black holes with masses of millions to billions of solar masses dwell in the centers of today’s galaxies1.
• Phoenix A Black Hole:
  • The nuclear black hole in the Phoenix cluster might have a mass of the order of $10^{11} M_\odot$2.