LBQS 1429-008

LBQS 1429-008 is a distant physical triple quasar located 10.5 billion light years away from Earth in the constellation of Virgo. It was discovered in 1989 by Paul Hewett and his colleagues from the Institute of Astronomy, Cambridge in England.
Originally a binary pair instead of a gravitational lensed quasar, a third quasar component was found in LBQS 1429-008 during an observation by a team of researchers from Keck Observatory who used a 10-meter telescope. This makes them the first physical triple quasar discovered. The system has an estimated separation of 30-50 kiloparsecs.