Horologium-Reticulum Supercluster

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)
Distance ; (co-moving)	291.4 Mpc (950 Mly)
Binding mass	~1017 M☉
Other designations
	Horologium-Reticulum Supercluster
	See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

Short description: Supercluster in the constellations Horologium and Eridanus

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 03^h 19^m and declination −50° 02′, and spans an angular area of 12° × 12°.^[2]

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.

References

↑ "The Horologium Supercluster". http://www.atlasoftheuniverse.com/superc/hor.html.
↑ 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. doi:10.1086/431972. Bibcode: 2005AJ....130..957F.
↑ "The Horologium Supercluster". http://www.atlasoftheuniverse.com/superc/hor.html.