| NGC 4911 | |
|---|---|
 HST image of NGC 4911 | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 13h 00m 56.06160s[1] |
| Declination | +27° 47′ 27.1512″[1] |
| Redshift | 0.02659[2] |
| Heliocentric radial velocity | 7866 km/s[2] |
| Distance | 378.4 Mly (116.02 Mpc)[3] |
| Apparent magnitude (V) | 13.7[2] |
| Apparent magnitude (B) | 13.33[2] |
| Characteristics | |
| Type | SAB(r)bc[4] |
| Apparent size (V) | 1.3′ |
| Notable features | Dreyer's description: 1st of 4, F, pL, *11 2' np |
| Other designations | |
| UGC 8128, MCG +05-31-093, PGC 44840[2] | |
NGC 4911 is a disturbed, warped spiral galaxy with a bright prominent central starburst ring and located deep within the Coma Cluster of galaxies, which lies some 300 million light years away in the northern constellation Coma Berenices.[5] NGC 4911 is believed to be interacting with its warped, barred lenticular companion (or any of its many other nearby companions), producing the enhanced star formation and shell-like appearance seen in optical images. The galaxy contains rich lanes of dust and gas near its centre. The existence of clouds of hydrogen within the galaxy indicates ongoing star formation.[5] It is rare for a spiral galaxy to be situated at the heart of a cluster.
- ^ a b Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
- ^ a b c d e "NGC 4911". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-12-12.
- ^ Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 790–813. arXiv:astro-ph/0610732. Bibcode:2007ApJ...655..790C. doi:10.1086/510201. S2CID 11672751.
- ^ "Results for object NGC 4911 (NGC 4911)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-12-12.
- ^ a b "NASA Image of the Day". NGC 4911. Retrieved 11 Aug 2010.