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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.