| MRC 2011-298 | |
|---|---|
 MRC 2011-298 taken by Pan-STARRS | |
| Observation data (J2000.0 epoch) | |
| Constellation | Sagittarius |
| Right ascension | 20h 14m 18.86s |
| Declination | -29d 42m 36.02s |
| Redshift | 0.136620 |
| Heliocentric radial velocity | 40,958 km/s |
| Distance | 2.115 Gly (648.5 Mpc) |
| Group or cluster | Abell 3670 |
| Apparent magnitude (V) | 0.229 |
| Apparent magnitude (B) | 0.303 |
| Characteristics | |
| Type | E |
| Notable features | Radio galaxy |
| Other designations | |
| PMN J2014-2942, PGC 726073, NVSS J201418-294234, TXS 2011-298, 2MASX J20141866-2942364 | |
MRC 2011-298 is an elliptical galaxy with an active galactic nucleus, located in the constellation of Sagittarius. It is located 2.1 billion light-years away from Earth. MRC 2011-298 is the brightest cluster galaxy in the galaxy cluster, Abell 3670[1][2] and classfied as a dumbbell galaxy,[3] an optical system with two galactic nuclei separated by 7″, corresponding to ≃17 kpc according to the adopted cosmology, with similar magnitude and a common stellar halo.[4] The galaxy is known to have an ellipticity of ε = 0.28 and a position angle of PA = 24° that is measured from north to east.[5]
- ^ Nowakowski, Tomasz; Phys.org. "Multifrequency observations shed more light on the nature of radio galaxy MRC 2011-298". phys.org. Retrieved 2024-06-04.
- ^ Andreon, S.; Garilli, B.; Maccagni, D.; Gregorini, L.; Vettolani, G. (1992-12-01). "Multicolor surface photometry of brightest cluster galaxies". Astronomy and Astrophysics. 266: 127–139. Bibcode:1992A&A...266..127A. ISSN 0004-6361.
- ^ Gregorini, L.; Vettolani, G.; de Ruiter, H. R.; Parma, P. (1992-10-01). "Samples of dumb-bell galaxies in southern rich clusters". Astronomy and Astrophysics Supplement Series. 95: 1–7. Bibcode:1992A&AS...95....1G. ISSN 0365-0138.
- ^ Valentijn, E. A.; Casertano, S. (1988-11-01). "Relative velocities of dumbbell galaxies". Astronomy and Astrophysics. 206: 27–40. Bibcode:1988A&A...206...27V. ISSN 0004-6361.
- ^ Makarov, Dmitry; Prugniel, Philippe; Terekhova, Nataliya; Courtois, Hélène; Vauglin, Isabelle (2014-10-01). "HyperLEDA. III. The catalogue of extragalactic distances". Astronomy & Astrophysics. 570: A13. arXiv:1408.3476. Bibcode:2014A&A...570A..13M. doi:10.1051/0004-6361/201423496. ISSN 0004-6361.