[1][2][3] It was discovered by the astronomers Roger Clowes and Luis Campusano in 1991.
Lying at a distance of 9.5 billion light years away, the CCLQG is a cosmic decoupling of 34 individual quasars (highly luminous active galactic nuclei powered by supermassive black holes) spanning a region roughly 2 billion light-years in length, and about 1 billion light years wide, making it one of the largest and most exotic cosmic structures known in the observable universe.
It was named U1.28 because of its average redshift of 1.28, and is located in the constellation of Leo.
[4] It was also notable because it is located in the ecliptic, the line where the Sun seems to travel in the entire year.
It was 1.8 billion light-years away from the Huge-LQG, a group of 73 quasars discovered in 2012.