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Horologium-Reticulum Supercluster

Summary

The Horologium-Reticulum Supercluster, is a massive supercluster spanning around 550 million light-years.[1] 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°.[2]

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
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

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).[3] It includes the galaxy cluster Abell 3266.

See also edit

References edit

  1. ^ "The Horologium Supercluster". www.atlasoftheuniverse.com. Retrieved 2018-11-04.
  2. ^ 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/0505361. Bibcode:2005AJ....130..957F. doi:10.1086/431972. S2CID 13839289.
  3. ^ "The Horologium Supercluster". www.atlasoftheuniverse.com. Retrieved 2018-11-04.