ULAS J1342+0928
Second most distant quasar known located in the constellation Boötes / From Wikipedia, the free encyclopedia
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ULAS J1342+0928 is the third-most distant known quasar detected and contains the second-most distant and oldest known supermassive black hole,[1][5][6][7] at a reported redshift of z = 7.54. The ULAS J1342+0928 quasar is located in the Boötes constellation.[3] The related supermassive black hole is reported to be "800 million times the mass of the Sun".[5] At its discovery, it was the most distant known quasar. In 2021 it was eclipsed by QSO J0313-1806 as the most distant quasar.[8]
Quick Facts Observation data (Epoch J2000.0), Constellation ...
ULAS J1342+0928[1][2] | |
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Observation data (Epoch J2000.0) | |
Constellation | Boötes[3] |
Right ascension | 13h 42m 08.10s |
Declination | +09° 28′ 38.61″ |
Redshift | 7.5413±0.0007[1] |
Distance | 29.36 Gly (9.00 Gpc) (comoving distance)[4] 13.1 Gly (4.0 Gpc) (light travel distance)[5] |
Other designations | |
ULAS J134208.10+092838.61,[1] Quasar20171206[6] | |
See also: Quasar, List of quasars |
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