PSO J030947.49+271757.31

PSO J030947.49+271757.31
Observation data(EpochJ2000)
Constellation	Aries
Right ascension	03h09m47.49s
Declination	+27° 17′ 57.31″
Redshift	6.1
Distance	12.7 billion ly (4.0 billion pc) (light travel distance) 27.6 billion ly (8.5 billion pc) (proper distance)
Type	Blazar
Other designations
PSO J0309+27
See also:Quasar,List of quasars

PSO J030947.49+271757.31,sometimes shortened toPSO J0309+27,is the most distant knownblazar,as of 2020. It lies inAries.The blazar has aredshiftof 6.1, meaning its light took almost 13 billion years to reach Earth, when the universe was about 1 billion years old, and its present comoving distance is about 30 billion light-years. It was discovered by a team of researchers led by Silvia Belladitta, a Ph.D. student at theUniversity of Insubria,working for theItalian National Institute for Astrophysics(INAF) inMilan,Italy.

Further reading

• S. Belladitta; A. Moretti; A. Caccianiga; C. Spingola; P. Severgnini; R. Della Ceca; G. Ghisellini; D. Dallacasa; T. Sbarrato; C. Cicone; L. P. Cassarà; M. Pedani (6 February 2020), "The first blazar observed at z>6",Astronomy & Astrophysics,635:L7,arXiv:2002.05178,Bibcode:2020A&A...635L...7B,doi:10.1051/0004-6361/201937395
• Ferreira, Becky (March 9, 2020)."An Ancient Black Hole as Heavy as a Billion Suns Is Pointed Right At Us".Vice Motherboard.The blazar—powered by an extremely bright black hole that can blast a hole through galaxies—is the most ancient ever discovered, sending radio signals from the early universe
• Matt Williams (March 19, 2020)."Blazar Found Blazing When the Universe was Only a Billion Years Old".Universe Today.
• Monzon, Inigo (March 12, 2020)."Ancient Supermassive Black Hole Aiming At Earth With Particle Beam".International Business Times.