Astronomy:Horologium-Reticulum Supercluster
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Short description: Supercluster in the constellations Horologium and Eridanus
| 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 | |
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]
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
- Abell catalog
- Large scale structure of the universe
- List of Abell clusters
- List of superclusters
- List of largest galaxy superclusters
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.
Coordinates: 
03h 19m 0s, −50° 02′ 00″
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