Horologium-Reticulum Supercluster

Horologium Supercluster
A map of the Horologium Supercluster
Observation data (Epoch )
Constellation(s)Horologium and Eridanus
Right ascension03h 19m
Declination−50° 02
Major axis169 Mpc (551 Mly)
Distance291.4 Mpc (950 Mly)
Binding mass~1017 M
Other designations
Horologium-Reticulum Supercluster

The Horologium-Reticulum Supercluster, is a massive supercluster spanning around 550 million light-years. It has a mass of around 1017 solar masses, similar to that of the Laniakea Supercluster, which 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°.

The nearest part of the supercluster is 700 million light-years away from Earth, while the far end of it is 1.2 billion light-years. It is 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 galaxy cluster Abell 3266.