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)
ConstellationCentaurus
Right ascension 13h 27m 56.8ss[1]
Declination−31° 29′ 44″[1]
Redshift0.046902[1]
Helio radial velocity14061 km/s[1]
Distance640 Mly (195 Mpc)[1]
Group or clusterAbell 3558
Apparent magnitude (V)12.6[1]
Characteristics
TypecD4, E+4[1]
Size~402,200 ly (123.32 kpc) (estimated)[1]
Apparent size (V)1.7 x 1.2[1]
Notable featuresLarge 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]

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See also

References
  1. "NASA/IPAC Extragalactic Database". Results for ESO 444-46. Retrieved 2018-04-12.
  2. User, Super. "Central Shapley Supercluster (Abell 3558)". chart32.de. Retrieved 2018-04-12.
  3. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2018-04-12.
  4. 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.
  5. "ESO 444-46". Retrieved 2018-04-12.
  6. "The Shapley Supercluster". www.atlasoftheuniverse.com. Retrieved 2018-04-12.
  7. 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.


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