Right ascension 08 42 05.0942 Redshift 1.27 Magnitude 16.36 Apparent magnitude (V) 16.36 | Declination +18° 35′ 40.991″ Type Rad Constellation Cancer | |
Distance 8.4 billion light-years
(Light travel time) Similar DX Cancri, Gamma Cancri, Delta Cancri, Beta Cancri, Alpha Cancri | ||
QSO B0839+187 (PKS 0839+187) is a quasar that was used to measure the speed of gravity in VLBI experiment conducted by Edward Fomalont and Sergei Kopeikin in September 2002.
References
QSO B0839+187 Wikipedia(Text) CC BY-SA