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 | 291.4 Mpc (950 Mly) |
| Binding mass | ~1017 M☉ |
| Other designations | |
| Horologium-Reticulum Supercluster; MSCC 117 | |
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).[1] It includes the galaxy cluster Abell 3266.
The first observation of the Horologium Supercluster was in 1899; Harlow Shapley noticed it in 1935. The first attempt to study the supercluster after Shapley was in 1983.[1]
Members
[edit]The Horologium-Reticulum Supercluster (SCL 48) is a supercluster that contains approximately 35 galaxy clusters, making it one of the largest in the local universe and it is the second largest in the Main Supercluster Catalogue (MSCC) catalog.[3] The galaxy clusters which are Abell 3004, 3009, 3045, 3074, 3077, 3078, 3089, 3093, 3098, 3100, 3104, 3106, 3108, 3109, 3110, 3111, 3112, 3116, 3120, 3122, 3123, 3125, 3128, 3133, 3135, 3142, 3145, 3154, 3158, 3161, 3164, 3195, 3202, 3225, 3266.[4] However, there is another catalog that suggests that there is another 30 additional galaxy clusters such as Abell 383.[5]
See also
[edit]References
[edit]- 1 2 3 "The Horologium Supercluster". www.atlasoftheuniverse.com. Retrieved 2018-11-04.
- ↑ 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.
- ↑ Chow-Martínez, M.; Andernach, H.; Caretta, C. A.; Trejo-Alonso, J. J. (2011). "Two New Catalogues of Superclusters of Abell/ACO Galaxy Clusters out to redshift 0.15". Monthly Notices of the Royal Astronomical Society. 417 (2): 1059–1074. arXiv:1105.4139. Bibcode:2011MNRAS.417.1059C. doi:10.1111/j.1365-2966.2011.19327.x.
- ↑ Einasto, M.; Einasto, J.; Tago, E.; Müller, V.; Andernach, H. (2001). "Optical and X-Ray Clusters as Tracers of the Supercluster-Void Network. I. Superclusters of Abell and X-Ray Clusters". The Astronomical Journal. 122 (5): 2222–2242. arXiv:astro-ph/0012536. Bibcode:2001AJ....122.2222E. doi:10.1086/323707.
- ↑ Einasto, M.; Einasto, J.; Tago, E.; Andernach, H.; Dalton, G. B.; Müller, V. (2001). "Optical and X-Ray Clusters as Tracers of the Supercluster-Void Network. III. Distribution of Abell and APM Clusters". The Astronomical Journal. 122 (5): 2222–2242. arXiv:astro-ph/0008078. Bibcode:2001AJ....122.2222E. doi:10.1086/323141.
| Stars |
| ||||||||
|---|---|---|---|---|---|---|---|---|---|
| |||||||||
| Star clusters |
| ||||||||
| Galaxies |
| ||||||||
| |||||||||
 | This supercluster-related article is a stub. You can help Wikipedia by adding missing information. |