ULAS J1342+0928
| ULAS J1342+0928 | |
|---|---|
Artist's conception of a similar quasar | |
| Observation data (Epoch J2000.0) | |
| Constellation | Boötes |
| Right ascension | 13h 42m 08.10s |
| Declination | +09° 28′ 38.61″ |
| Redshift | 7.5413±0.0007 |
| Distance | 29.36 Gly (9.00 Gpc) (comoving distance) 13.1 Gly (4.0 Gpc) (light travel distance) |
| Other designations | |
| ULAS J134208.10+092838.61, Quasar20171206 | |
| See also: Quasar, List of quasars | |
ULAS J1342+0928 is the third-most distant known quasar detected and contains the second-most distant and oldest known supermassive black hole, at a reported redshift of z = 7.54. The ULAS J1342+0928 quasar is located in the Boötes constellation. The related supermassive black hole is reported to be "780 million times the mass of the Sun". At its discovery, it was the most distant known quasar. In 2021 it was eclipsed by QSO J0313-1806 as the most distant quasar.