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PSO J030947.49+271757.31

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PSO J030947.49+271757.31
Observation data (Epoch J2000)
ConstellationAries
Right ascension03h 09m 47.49s
Declination+27° 17′ 57.31″
Redshift6.1
Distance12.7 billion ly (4.0 billion pc) (light travel distance)
27.6 billion ly (8.5 billion pc) (proper distance)
TypeBlazar
Other designations
PSO J0309+27
See also: Quasar, List of quasars

PSO J030947.49+271757.31, sometimes shortened to PSO J0309+27, is the most distant known blazar, as of 2020. It lies in Aries. The blazar has a redshift of 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 the University of Insubria, working for the Italian National Institute for Astrophysics (INAF) in Milan, Italy.[1]

References

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  1. ^ "Astronomers report most distant blazar ever observed". phys.org. March 9, 2020. Retrieved 27 March 2020.

Further reading

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