QSO B0839+187
Appearance
QSO B0839+187 | |
---|---|
Observation data (Epoch J2000) | |
Constellation | Cancer |
Right ascension | 08h 42m 05.0942s |
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