QSO B0839+187

QSO B0839+187
Observation data (Epoch J2000)
Constellation	Cancer
Right ascension	08^h 42^m 05.0942^s
Declination	+18° 35′ 40.991″
Redshift	1.27^[1]^[2]
Distance	8.4 billion light-years (Light travel time)^[2]
Type	Rad
Apparent magnitude (V)	16.36
Other designations
LEDA 2825583, PKS J0842+1835, PKS 0839+187, 2MASS J08420509+1835411, QSO B0839+1846
See also: Quasar, List of quasars

QSO B0839+187 (PKS 0839+187) is a quasar^[1] that was used to measure the speed of gravity in VLBI experiment conducted by Edward Fomalont and Sergei Kopeikin in September 2002.

References

1 2 Simbad
1 2 "NASA/IPAC Extragalactic Database". Results for 0839+1846. Retrieved 2010-04-20.

Coordinates: 08^h 42^m 05.0942^s, +18° 35′ 40.991″

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