archive / atlas record
TON 618
An exceptionally luminous quasar powered by a very massive black hole.
- classification
- Luminous quasar / supermassive black hole
- system
- Distant galaxy
TON 618 is observed as it was in the distant past. Its inferred central mass depends on models of the rapidly moving gas around it.
- Class
- Luminous quasar / supermassive black hole
- Location / system
- Distant galaxy
- Distance
- Billions of light-years from Earth
Only values with an established scientific consensus are listed. Where a quantity is uncertain or model-dependent, it is discussed in the sections below rather than stated as data.
Overview (starter entry, expanded review pending)
TON 618 is observed as it was in the distant past. Its inferred central mass depends on models of the rapidly moving gas around it.
Gravity and high-energy observation
TON 618 is inferred from the motion and radiation of surrounding matter. Mass estimates are model-dependent rather than direct pictures of an interior.
- What remains least constrained about TON 618?Composition, internal structure, formation history or local environment can require different observations and may remain model-dependent.
Items above are unresolved. Hypotheses are labelled as such and are not presented as confirmed findings.
NASA/IPAC // verified 28 September 2026
CDS Strasbourg // verified 28 September 2026