Horologium superclusters

Horologium superclusters

[‚hȯr·ə‚lō·gē·əm ′sü·pər‚kləs·tərz] (astronomy) Two superclusters in approximately the same direction, with recession velocities around 12,000 kilometers (7500 miles) and 18,000 kilometers (11,200 miles) per second.