Horologium Supercluster

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Horologium Supercluster
A map of the Horologium Supercluster
Observation data (Epoch )
Constellation(s) Horologium and Eridanus
Right ascension 03h 19m
Declination −50° 02′
Major axis 169 Mpc (551 Mly)
291.4 Mpc (950 Mly)
Binding mass ~1017 M
Other designations
Horologium-Reticulum Supercluster
See also: Galaxy groups, Galaxy clusters, List of superclusters

The Horologium Supercluster, also known as Horologium-Reticulum Supercluster, consisting of SCl 48 and SCl 49) is a massive supercluster; spanning about 550 million light-years, it has a mass of 1017 solar masses, similar to that of the Laniakea Supercluster that houses the Milky Way. It is centered on coordinates right ascension 03h 19m and declination −50° 02′, and spans an angular area of 12° × 12°.[1]

The nearest part of the supercluster is 700 million light-years (z=0.063) away from Earth, while the far end of it is 1.2 billion light-years, visible in the constellations Horologium and Eridanus. The Horologium Supercluster has about 5,000 galaxy groups (30,000 giant galaxies and 300,000 dwarf galaxies). It includes the cluster Abell 3266.

See also[edit]


  1. ^ Fleenor, Matthew C.; Rose, James A.; Christiansen, Wayne A.; Hunstead, Richard W.; Johnston-Hollitt, Melanie; Drinkwater, Michael J.; Saunders, William (September 2005). "Large-Scale Velocity Structures in the Horologium-Reticulum Supercluster". The Astronomical Journal. 130 (3): 957–967. arXiv:astro-ph/0505361Freely accessible. Bibcode:2005AJ....130..957F. doi:10.1086/431972. 

External links[edit]

Coordinates: Sky map 03h 19m 0s, −50° 02′ 00″