ACO catalog number
|
Other names
|
Member of
|
Constellation
|
Right ascension (J2000)
|
Declination (J2000)
|
Abell richness class
|
Bautz–Morgan type
|
Notes
|
2029
|
|
|
Virgo
|
15h10m 56.0s
|
+05° 44′ 41″
|
2 |
I |
Near the Serpens–Virgo border.
|
2052
|
|
|
|
15h16m 45.5s
|
+07° 00′ 01″
|
0
|
I-II
|
|
2061
|
|
Corona Borealis Supercluster
|
Corona Borealis
|
15h21m 15.3s
|
+30° 39′ 17″
|
1 |
III
|
|
2063
|
|
Hercules Superclusters
|
|
15h23m 05.3s
|
+08° 36′ 33″
|
|
|
|
2065
|
Corona Borealis Cluster
|
Corona Borealis Supercluster
|
Corona Borealis
|
15h22m 42.6s
|
+27° 43′ 21″
|
2 |
III
|
|
2067
|
|
Corona Borealis Supercluster
|
Corona Borealis
|
15h23m14s
|
+30° 54′ 23″
|
1 |
III
|
|
2079
|
|
Corona Borealis Supercluster
|
Corona Borealis
|
15h28m 04.7s
|
+28° 52′ 40″
|
|
|
|
2089
|
|
Corona Borealis Supercluster
|
Corona Borealis
|
15h32m 41.3s
|
+28° 00′ 56″
|
|
|
|
2092
|
|
Corona Borealis Supercluster
|
Corona Borealis
|
15h33m 17.0s
|
+31° 08′ 55″
|
|
|
|
2107
|
|
Hercules Superclusters
|
|
15h39m 39.0s
|
+21° 46′ 58″
|
|
|
|
2124
|
|
|
Corona Borealis
|
15h44m59s
|
+36° 04′
|
1 |
I |
|
2142
|
|
|
Corona Borealis
|
15h58m 16.1s
|
+27° 13′ 29″
|
2 |
II |
A merger of two huge galaxy clusters.
|
2147
|
|
Hercules Superclusters
|
Serpens
|
16h02m 17.2s
|
+15° 53′ 43″
|
1 |
III
|
|
2151
|
Hercules Cluster
|
Hercules Superclusters
|
Hercules
|
16h05m 15.0s
|
+17° 44′ 55″
|
2 |
III
|
Major component of the Hercules Superclusters.
|
2152
|
|
Hercules Superclusters
|
|
16h05m 22.4s
|
+16° 26′ 55″
|
1 |
III
|
The smaller part of the Hercules supercluster, Lx ≤ 3 x 1044 ergs/s.[5]
|
2162
|
|
Hercules Superclusters
|
Corona Borealis
|
16h12m 30.0s
|
+29° 32′ 23″
|
|
|
|
2163
|
|
|
Ophiuchus
|
16h15m 34.1s
|
−06° 07′ 26″
|
2 |
|
|
2199
|
|
Hercules Superclusters
|
Hercules
|
16h28m 38.5s
|
+39° 33′ 06″
|
2 |
I |
|
2200
|
|
|
Hercules
|
16h29m 24.7s
|
+28° 10′ 30″
|
0
|
|
|
2218
|
|
|
Draco
|
16h35m 54.0s
|
+66° 13′ 00″
|
4 |
II |
Exhibits gravitational lensing.
|
2256
|
|
|
Ursa Minor
|
17h03m 43.5s
|
+78° 43′ 03″
|
2 |
II-III
|
|
2261
|
|
|
Hercules
|
17h22m 28.34s
|
+32° 09′ 12.67″
|
|
I |
Part of the Cluster Lensing and Supernova survey with Hubble (CLASH) survey.
|
2319
|
|
|
Cygnus
|
19h20m 45.3s
|
+43° 57′ 43″
|
1 |
II-III
|
Very close to, and possibly extending into, Lyra.
|
2384
|
|
|
Capricornus
|
21h52m 18.9s
|
−19° 34′ 42″
|
1 |
II-III
|
|
2390
|
|
|
Pegasus
|
21h53m 34.6s
|
+17° 40′ 11″
|
1 |
|
|
2440
|
|
|
|
22h23m 52.6s
|
−01° 35′ 47″
|
0
|
II |
|
2515
|
|
|
Pegasus
|
23h 00m 40.9s
|
+31° 09' 52"
|
3 |
II |
|
2589
|
|
|
Pegasus
|
23h24m 00.5s
|
+16° 49′ 29″
|
0
|
I |
|
2666
|
|
|
|
23h50m 56.2s
|
+27° 08′ 41″
|
0
|
I |
|
2667
|
|
|
Sculptor
|
23h51m 47.1s
|
−26° 00′ 18″
|
3 |
I |
Exhibits strong gravitational lensing.
|
2744
|
Pandora's Cluster
|
|
Sculptor
|
00h14m 19.5s
|
−30° 23′ 19″
|
3 |
III
|
It seems to have formed from four different clusters involved in a series of collisions over a period of some 350 million years.[6]
|
3128
|
Shapley 20 Cluster
|
|
|
03h30m 34.6s
|
−52° 33′ 12″
|
3 |
I-II
|
|
3158
|
Shapley 17 Cluster
|
|
|
03h42m 39.6s
|
−53° 37′ 50″
|
2 |
I-II
|
|
3192
|
MCS/MACS J0358.8-2955
|
|
Eridanus
|
|
|
|
|
Comprises such a huge amount of mass that the galaxy cluster noticeably curves spacetime around it, making it into a gravitational lens. Smaller galaxies behind the cluster appear distorted into long, warped arcs around the cluster’s edges.[7]
|
3266
|
|
Horologium Supercluster
|
Reticulum
|
04h31m 11.9s
|
−61° 24′ 23″
|
2 |
I-II
|
|
3341
|
|
|
|
05h25m 35.1s
|
−31° 35′ 26″
|
2 |
II |
|
3363
|
|
|
|
05h45m 07.8s
|
−47° 56′ 52″
|
3 |
I |
|
3526
|
Centaurus Cluster
|
Hydra–Centaurus Supercluster
|
Centaurus
|
12h48m 51.8s
|
−41° 18′ 21″
|
0
|
I-II
|
|
3558
|
Shapley 8 Cluster
|
Shapley Supercluster
|
|
13h27m 54.8s
|
−31° 29′ 32″
|
4 |
I |
|
3562
|
|
Shapley Supercluster
|
|
13h33m 31.8s
|
−31° 40′ 23″
|
2 |
I |
|
3565
|
|
Hydra–Centaurus Supercluster
|
|
13h36m 39.9s
|
−33° 58′ 17″
|
1 |
I |
|
3574
|
|
Hydra–Centaurus Supercluster
|
|
13h49m 09.4s
|
−30° 17′ 54″
|
0
|
I |
|
3581
|
|
Hydra–Centaurus Supercluster
|
|
14h07m 27.5s
|
−27° 01′ 15″
|
0
|
I |
|
3627
|
Norma Cluster
|
|
Norma
|
16h15m 32.8s
|
−60° 54′ 30″
|
1 |
I |
|
3667
|
|
|
Pavo
|
20h12m31s
|
−56° 49′ 55″
|
2 |
I-II
|
10^15 solar masses, bright X-ray source, paired radio relics, likely result of cluster merger
|
3677
|
|
|
Microscopium
|
20h26m21s
|
−33° 21′ 06″
|
|
|
possible member of Microscopium Supercluster
|
3693
|
|
|
Microscopium
|
20h34m22s
|
−34° 29′ 40″
|
|
|
possible member of Microscopium Supercluster
|
3695
|
|
Microscopium Supercluster
|
Microscopium
|
20h34m48s
|
−35° 49′ 39″
|
|
|
gravitationally bound to Abell 3696
|
3696
|
|
Microscopium Supercluster
|
Microscopium
|
20h35m10s
|
−34° 54′ 36″
|
|
|
gravitationally bound to Abell 3695
|
3705
|
|
|
Microscopium
|
20h41m42s
|
−35° 14′ 00″
|
|
|
possible member of Microscopium Supercluster
|
3854
|
|
|
|
22h17m 42.9s
|
−35° 42′ 58″
|
3 |
II |
|
4059
|
|
|
|
23h56m 40.7s
|
−34° 40′ 18″
|
1 |
I |
|