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The second most massive galaxy cluster next to El Gordo is RCS2 J2327, a galaxy cluster with the mass of 2 quadrillion suns. Also has a systematic designation of ACT-CL J0102-4915. [6] [7] [8] Musket Ball Cluster: Named in comparison to the Bullet Cluster, as this one is older and slower galaxy cluster merger than the Bullet Cluster.
These four near-equals at the core of galaxy cluster CL 0958+4702 are in the process of merging. [149] Galaxy protocluster LBG-2377: z=3.03 This was announced as the most distant galaxy merger ever discovered. It is expected that this proto-cluster of galaxies will merge to form a brightest cluster galaxy, and become the core of a larger galaxy ...
The Abell catalogue is a catalogue of approximately 4,000 galaxy clusters with at least 30 members, almost complete to a redshift of z = 0.2. It was originally compiled by the American astronomer George O. Abell in 1958 using plates from POSS , and extended to the southern hemisphere by Abell, Corwin and Olowin in 1987.
Abell divided the clusters into six "richness groups", depending on the number of galaxies in a given cluster that lie within the magnitude range m 3 to m 3 +2 (the average number of galaxies per cluster for the entire catalog was 64): Group 0: 30–49 galaxies; Group 1: 50–79 galaxies; Group 2: 80–129 galaxies; Group 3: 130–199 galaxies
MACS J0152.5-2852 is a massive galaxy cluster. Almost every pixel seen in the image is a galaxy, each containing billions of stars. [1]Galaxy groups and clusters are the largest known gravitationally bound objects to have arisen thus far in the process of cosmic structure formation. [2]
2MASSI — Two Micron All Sky Survey, Incremental release; 2MASSW — Two Micron All Sky Survey, Working database; 2MUCD — Ultracool Dwarfs from the 2MASS Catalog; 2MASX — Two Micron All Sky Survey, Extended source catalogue; 2MASS-GC (Globular Clusters, I.R.) (2MASS-GC 01 and 2MASS-GC 02 are Hurt 1 and Hurt 2) (source: Bruno Alessi) 3A ...
Pages in category "Galaxy clusters" The following 138 pages are in this category, out of 138 total. ... 0–9. 2XMM J083026+524133; A. Abell 68; Abell 222; Abell 223 ...
NGC number Other names Object type Constellation Right ascension Declination Apparent magnitude; 6008: NGC 6008A Barred spiral galaxy: Serpens: 15 h 52 m 56.288 s +21° 06′ 01.819″ 12.9 6025: Open cluster: Triangulum Australe: 16 h 03 m 42 s: −60° 30′ 00″ 5.1 6027 (Part of Seyfert's Sextet) Interacting galaxy: Serpens: 15 h 59 m 12.7 ...