Horologium-Reticulum Supercluster

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

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

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

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

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Constellation of Horologium

* List of stars in Horologium
* Horologium in Chinese astronomy

Stars|

| Bayer|

* α
* β
* γ
* δ
* ζ
* η
* ι
* λ
* μ
* ν

|

Variable|

* R
* TU
* TW
* TZ
* WW

HR|

* 688
* 734
* 755
* 821
* 823
* 866
* 871
* 960
* 998
* 1021
* 1090
* 1167
* 1169
* 1216
* 1323
* 1364

HD|

* 18292
* 21360
* 23308
* 27631

Other|

* DENIS 0334-49
* Gliese 146
* Gliese 1061
* WASP-120

| Exoplanets|

* ι Horologii b

|

Star
clusters|

| NGC|

* 1252
* 1261

|

Other|

* Arp-Madore 1

Galaxies|

| NGC|

* 888
* 1025
* 1031
* 1096
* 1135
* 1136
* 1244
* 1246
* 1249
* 1311
* 1356
* 1411
* 1433
* 1448
* 1476
* 1483
* 1493
* 1494
* 1495
* 1510
* 1512
* 1527

|

| Galaxy clusters|

* Horologium Supercluster

|

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