ESO 444-46
ESO 444-46 is a giant elliptical galaxy[2] located about 640 million light-years away[3] in the constellation Centaurus.[2] It is the brightest member of the galaxy cluster Abell 3558[4][5] which lies in the center of the Shapley Supercluster.[6]
| ESO 444-46 | |
|---|---|
 HST image of the elliptical galaxy ESO 444-46. | |
| Observation data (J2000 epoch) | |
| Constellation | Centaurus |
| Right ascension | 13h 27m 56.8ss[1] |
| Declination | −31° 29′ 44″[1] |
| Redshift | 0.046902[1] |
| Helio radial velocity | 14061 km/s[1] |
| Distance | 640 Mly (195 Mpc)[1] |
| Group or cluster | Abell 3558 |
| Apparent magnitude (V) | 12.6[1] |
| Characteristics | |
| Type | cD4, E+4[1] |
| Size | ~402,200 ly (123.32 kpc) (estimated)[1] |
| Apparent size (V) | 1.7 x 1.2[1] |
| Notable features | Large globular cluster population |
| Other designations | |
| ESO 444- G 046, MCG -05-32-026, PGC 047202[1] | |
Globular clusters
ESO 444-46 has an estimated population of about 27,000 globular clusters which may be one of the largest populations ever studied. However, this large number may be due to the addition of Intracluster globular clusters since the galaxy lies about 1 arcmin of the center of Abell 3558.[7]
References
- "NASA/IPAC Extragalactic Database". Results for ESO 444-46. Retrieved 2018-04-12.
- User, Super. "Central Shapley Supercluster (Abell 3558)". chart32.de. Retrieved 2018-04-12.
- "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2018-04-12.
- Loubser, S. I.; Sansom, A. E.; Sánchez-Blázquez, P.; Soechting, I. K.; Bromage, G. E. (2008-12-11). "Radial kinematics of brightest cluster galaxies". Monthly Notices of the Royal Astronomical Society. 391 (3): 1009–1028. arXiv:0808.1521. Bibcode:2008MNRAS.391.1009L. doi:10.1111/j.1365-2966.2008.13813.x. ISSN 0035-8711.
- "ESO 444-46". Retrieved 2018-04-12.
- "The Shapley Supercluster". www.atlasoftheuniverse.com. Retrieved 2018-04-12.
- Barber DeGraaff, Regina Grace (August 2011). "A Study of Globular Cluster Systems in the Shapley Supercluster Region with the Hubble Space Telescope" (PDF). Washington State University Libraries. Retrieved 2018-04-12.
External links
- ESO 444-46 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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