List of Abell clusters

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Abell 383, the giant cluster of elliptical galaxies in the centre of this image, contains so great a mass of dark matter that its gravity bends the light from a background object into an arc, a phenomenon known as strong gravitational lensing.

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. The name "Abell" is also commonly used as a designation for objects he compiled in a catalogue of 86 planetary nebulae in 1966. The proper designation for the galaxy clusters is ACO, as in "ACO 13", while the planetary-nebula designation is the single letter A, as in "A 39".

1–1999[edit]

ACO catalog number Other names Member of Constellation Right ascension (J2000)[2] Declination (J2000)[2] Abell richness class[2][3] Bautz-Morgan type[2][3] Notes
13  00h 13m 38.5s −19° 30′ 19″ 2 II ACO 13 is not to be confused with Abell 13, a planetary nebula
Abell 85  00h 41m 37.8s −09° 20′ 33″ 1 I
133 Cetus  01h 02m 39.0s −21° 57′ 15″ 0
222 Cetus  01h 37m 29.2s −12° 59′ 10″ 3 II-III
223 Cetus  01h 37m 56.4s −12° 48′ 01″ 3 III
226  01h 38m 58.7s −10° 14′ 47″ 1 II
262 Perseus-Pisces Supercluster Between Andromeda and Triangulum  01h 52m 50.4s +36° 08′ 46″ 0 III
263  01h 53m 21.7s +37° 33′ 45″ 1
370 Cetus  02h 39m 50.5s −01° 35′ 08″ 0 II-III Exhibits gravitational lensing. The most distant Abell object, at a redshift of 0.375.
383 Eridanus  02h 48m 07.0s −03° 29′ 32″ 2 II-III
400 Cetus  02h 57m 38.6s +06° 02′ 00″ 1 II-III
401 Aries  02h 58m 57.0s +13° 34′ 56″ 2 I
426 Perseus Cluster Perseus-Pisces Supercluster Perseus  03h 18m 36.4s +41° 30′ 54″ 2 II-III
478 Taurus  04h 13m 20.7s +10° 28′ 35″ 2
514  04h 47m 40.1s −20° 25′ 44″ 1 II-III
520 Train Wreck Cluster Orion  04h 54m 19.0s +02° 56′ 49″ 3 III
553  06h 12m 37.5s +48° 36′ 13″ 0 II
569 Lynx  07h 09m 10.4s +48° 37′ 10″ 0 II
576 Lynx  07h 21m 24.2s +55° 44′ 20″ 1 III
653 Hydra  08h 21m 47.0s +01° 13′ 23″ 1
665 Ursa Major  08h 30m 45.2s +65° 52′ 55″ 5 III The only Abell cluster of richness class 5.[4]
671 Cancer  08h 28m 29.3s +03° 25′ 01″ 0 II-III
689 Cancer  08h 37m 29.7s +14° 59′ 29″ 0
754 Hydra  09h 08m 50.1s −09° 38′ 12″ 2 I-II
779 Lynx  09h 19m 9s +33° 46′
901  09h 56m 09.7s −09° 56′ 17″ 1
907 Hydra  09h 58m 21.2s −11° 03′ 22″ 1
955  10h 12m 56.0s −24° 26′ 53″ 1
966  10h 16m 13.8s −25° 22′ 59″ 1 III
1060 Hydra Cluster Hydra  10h 36m 51.3s −27° 31′ 35″ 1 III
1142 Leo Supercluster  11h 00m 51.4s +10° 31′ 46″
1146 Crater  11h 01m 20.6s −22° 43′ 08″ 4 I
1185 Leo Supercluster Ursa Major  11h 10m 31.4s +28° 43′ 39″ 1 II
1367 Leo Cluster Leo  11h 44m 29.5s +19° 50′ 21″ 2 II-III
1413 Between Leo and Coma Berenices  11h 55m 18.9s +23° 24′ 31″ 3 I
1631 Corvus  12h 52m 49.8s −15° 26′ 17″ 0 I
1656 Coma Cluster Coma Berenices  12h 59m 48.7s +27° 58′ 50″ 2 II
1689 Virgo  13h 11m 29.5s −01° 20′ 17″ 4 II-III One of the biggest and most massive galaxy clusters known; exhibits gravitational lensing.
1795 Boötes  13h 49m 00.5s +26° 35′ 07″ 2 I
1835 Virgo  14h 01m 02.0s +02° 51′ 32″ 0 Behind it lies a candidate for the furthest known galaxy, "Galaxy Abell 1835 IR1916", seen through gravitational lensing.
1914 Boötes  14h 26m 03.0s +37° 49′ 32″ 2 II
1991 Boötes  14h 54m 30.2s +18° 37′ 51″ 1 I

2000–4076[edit]

ACO catalog number Other names Member of Constellation Right ascension (J2000) Declination (J2000) Abell richness class Bautz-Morgan type Notes
2029 Virgo  15h 10m 56.0s +05° 44′ 41″ 2 I Near the SerpensVirgo border.
2052  15h 16m 45.5s +07° 00′ 01″ 0 I-II
2061 Corona Borealis Supercluster Corona Borealis  15h 21m 15.3s +30° 39′ 17″ 1 III
2063 Hercules Superclusters  15h 23m 05.3s +08° 36′ 33″
2065 Corona Borealis Cluster Corona Borealis Supercluster Corona Borealis  15h 22m 42.6s +27° 43′ 21″ 2 III
2067 Corona Borealis Supercluster Corona Borealis  15h 23m 14s +30° 54′ 23″ 1 III
2079 Corona Borealis Supercluster Corona Borealis  15h 28m 04.7s +28° 52′ 40″
2089 Corona Borealis Supercluster Corona Borealis  15h 32m 41.3s +28° 00′ 56″
2092 Corona Borealis Supercluster Corona Borealis  15h 33m 17.0s +31° 08′ 55″
2107 Hercules Superclusters  15h 39m 39.0s +21° 46′ 58″
2124 Corona Borealis  15h 44m 59s +36° 04′ 1 I
2142 Corona Borealis  15h 58m 16.1s +27° 13′ 29″ 2 II A merger of two huge galaxy clusters.
2147 Hercules Superclusters Serpens  16h 02m 17.2s +15° 53′ 43″ 1 III
2151 Hercules Cluster Hercules Superclusters Hercules  16h 05m 15.0s +17° 44′ 55″ 2 III Major component of the Hercules Superclusters.
2152 Hercules Superclusters  16h 05m 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  16h 12m 30.0s +29° 32′ 23″
2163 Ophiuchus  16h 15m 34.1s −06° 07′ 26″ 2
2199 Hercules Superclusters Hercules  16h 28m 38.5s +39° 33′ 06″ 2 I
2200 Hercules  16h 29m 24.7s +28° 10′ 30″ 0
2218 Draco  16h 35m 54.0s +66° 13′ 00″ 4 II Exhibits gravitational lensing.
2256 Ursa Minor  17h 03m 43.5s +78° 43′ 03″ 2 II-III
2261 Hercules  17h 22m 28.34s +32° 09′ 12.67″ I Part of the Cluster Lensing And Supernova survey with Hubble (CLASH) survey.
2319 Cygnus  19h 20m 45.3s +43° 57′ 43″ 1 II-III Very close to, and possibly extending into, Lyra.
2384 Capricornus  21h 52m 18.9s −19° 34′ 42″ 1 II-III
2390 Pegasus  21h 53m 34.6s +17° 40′ 11″ 1
2440  22h 23m 52.6s −01° 35′ 47″ 0 II
2589 Pegasus  23h 24m 00.5s +16° 49′ 29″ 0 I
2666  23h 50m 56.2s +27° 08′ 41″ 0 I
2667 Sculptor  23h 51m 47.1s −26° 00′ 18″ 3 I Exhibits strong gravitational lensing.
2744 Pandora's Cluster Sculptor  00h 14m 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  03h 30m 34.6s −52° 33′ 12″ 3 I-II
3158 Shapley 17 Cluster  03h 42m 39.6s −53° 37′ 50″ 2 I-II
3266 Horologium Supercluster Reticulum  04h 31m 11.9s −61° 24′ 23″ 2 I-II
3341  05h 25m 35.1s −31° 35′ 26″ 2 II
3363  05h 45m 07.8s −47° 56′ 52″ 3 I
3526 Centaurus Cluster Hydra-Centaurus Supercluster Centaurus  12h 48m 51.8s −41° 18′ 21″ 0 I-II
3558 Shapley 8 Cluster Shapley Supercluster  13h 27m 54.8s −31° 29′ 32″ 4 I
3562 Shapley Supercluster  13h 33m 31.8s −31° 40′ 23″ 2 I
3565 Hydra-Centaurus Supercluster  13h 36m 39.9s −33° 58′ 17″ 1 I
3574 Hydra-Centaurus Supercluster  13h 49m 09.4s −30° 17′ 54″ 0 I
3581 Hydra-Centaurus Supercluster  14h 07m 27.5s −27° 01′ 15″ 0 I
3627 Norma Cluster Norma  16h 15m 32.8s −60° 54′ 30″ 1 I
3677 Microscopium  20h 26m 21s −33° 21′ 06″ possible member of Microscopium Supercluster
3693 Microscopium  20h 34m 22s −34° 29′ 40″ possible member of Microscopium Supercluster
3695 Microscopium Supercluster Microscopium  20h 34m 48s −35° 49′ 39″ gravitationally bound to Abell 3696
3696 Microscopium Supercluster Microscopium  20h 35m 10s −34° 54′ 36″ gravitationally bound to Abell 3695
3705 Microscopium  20h 41m 42s −35° 14′ 00″ possible member of Microscopium Supercluster
3854  22h 17m 42.9s −35° 42′ 58″ 3 II
4059  23h 56m 40.7s −34° 40′ 18″ 1 I

Southern catalogue S1–S1174[edit]

ACO catalog number Other names Member of Constellation Right ascension (J2000) Declination (J2000) Abell richness class Bautz-Morgan type Notes
S636 Antlia Cluster Hydra-Centaurus Supercluster Antlia  10h 30m 03.5s −35° 19′ 24″ 0 I-II
S740 Centaurus  13h 43m 32.3s −38° 11′ 05″ 0 I-II
S1077 Piscis Austrinus  22h 58m 52.3s −34° 46′ 55″ 2 II-III

See also[edit]

References[edit]

  1. ^ Clavin, Whitney; Jenkins, Ann; Villard, Ray (7 January 2014). "NASA's Hubble and Spitzer Team up to Probe Faraway Galaxies". NASA. Retrieved 8 January 2014.
  2. ^ a b c d "NASA/IPAC Extragalactic Database". NASA/IPAC Extragalactic Database (NED). Retrieved March 15, 2012.
  3. ^ a b "The VizieR Catalogue Service". Strasbourg Astronomical Observatory, UdS/CNRS, Strasbourg, France. Retrieved March 15, 2012.
  4. ^ Abell, George O.; Corwin, Harold G. Jr.; Olowin, Ronald P. (May 1989). "A catalog of rich clusters of galaxies" (PDF). Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi:10.1086/191333. ISSN 0067-0049. Retrieved March 16, 2012.
  5. ^ Reichert G, Mason KO, Charles PA, Bowyer S, Lea SM, Pravdo S (Aug 1981). "Low energy X-ray emission from five galaxy cluster sources". Astrophys. J. 247: 803–12. Bibcode:1981ApJ...247..803R. doi:10.1086/159092.
  6. ^ ESO-A Galactic Crash Investigation

External links[edit]