TON 618

NASA describes TON 618 as one of the extremely distant black holes with direct measurements and reports a mass of more than 60 billion Suns.

Also known as Ton 618 · QSO B1225+31 · QSO B1225+317 · QSO J1228+3128 · SDSS J122824.96+312837.6

Mass>60B M☉

DistanceNot reported by source catalogs

HostNot reported by source catalogs

3D model “Blackhole” by rubykamen, licensed under CC BY 4.0.

Catalog record

Identity and classification

ID: curated:ton-618
Canonical name: TON 618
Alternate names: Ton 618 · QSO B1225+31 · QSO B1225+317 · QSO J1228+3128 · SDSS J122824.96+312837.6
Black-hole type: Ultramassive Quasar Black Hole
Status: Confirmed
Population: Curated Notable
Confidence: NASA describes TON 618 as one of the extremely distant black holes with direct measurements and reports a mass of more than 60 billion Suns.
Host galaxy: Not reported by source catalogs

Position

Physical profile

Evidence

Provenance

Source catalog: NASA SVS 14335
Source reference: NASA Animation Sizes Up the Universe’s Biggest Black Holes
Last updated: 2026-09-12T01:40:08.085Z
Source record: Open provider record ↗