Abell 2152

{{Short description|Galaxy cluster in the constellation Hercules}}

{{Infobox galaxy cluster

| name = Abell 2152

| image =

| caption =

| credit =

| epoch = J2000

| constellation = Hercules

| ra = {{RA|16|05|32.2}}

| dec = {{DEC|+16|26|31}}

| brightest_member = UGC 10204

| member_no =

| richness = 1

| bmtype =

| velocity_dispersion =

| redshift = 0.041

| distance = {{convert|169|Mpc|Mly|0|abbr=on|lk=on}} {{hub|0.73}}

| temperature =

| luminosity =

| flux =

| other_names = CID 59, CAN 059, MCXC J1605.5+1626, WCB96 J19, SCL 160 NED09, EAD2007 222, ZwCl 1603.0+1639.

}}

Abell 2152 is a bimodal{{cite journal

| last1 = Flin

| last2 = Krywult

| title = Substructures in Abell clusters of galaxies

| journal = Astronomy & Astrophysics

| year = 2006

| volume = 450

| issue = 1

| pages = 9–14

| doi = 10.1051/0004-6361:20041635

|bibcode = 2006A&A...450....9F | doi-access = free

}} galaxy cluster and one of three clusters comprising the Hercules Supercluster. It contains 3 BCGs; the S0 lenticular UGC 10204, the pair UGC 10187, and the SA0 unbarred lenticular CGCG 108-083.{{cite web

| url = https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=abell+2152&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES

| title = NED results for object ABELL 2152

| publisher = NASA/IPAC Extragalactic Database (NED)

| access-date = June 10, 2017

}} In total there are 41 galaxies which are confirmed to be members of the cluster.{{cite web

| url = http://vizier.u-strasbg.fr/viz-bin/VizieR-6?-source=J/ApJ/736/21/bg%2a&BCG=8590..8590.9&-go&-source=J/ApJ/736/21/mg%2a&-out.max=999&Name.a=%20%208590

| title = VizieR results for J/ApJ/736/21/bg*

| publisher = VizieR catalogue access tool, CDS

| access-date = June 10, 2017

}} The cluster is classified as a Bautz-Morgan type III and Rood-Sastry class F cluster, indicating morphological irregularity and perhaps dynamical youth.{{cite journal

| last1 = Abell

| last2 = Corwin

| last3 = Olowin

| title = A Catalog of Rich Clusters of Galaxies

| journal = The Astrophysical Journal Supplement

| year = 1989

| volume = 70

| pages = 1–139

| doi = 10.1086/191333

|bibcode = 1989ApJS...70....1A | doi-access = free

}} It is receding from the Milky Way galaxy with a velocity of 12385 km/s.

Abell 2152 is the nearest cluster in which significant gravitational lensing of a background source has been observed. The arc-like background galaxy, known as J160529.52+162633.9, lies at a redshift z=0.1423 and has been magnified by a factor ~1.9 due to the lensing effect.{{cite journal

| last1 = Blakelee

| last2 = Metzger

| title = Lensing in the Hercules Supercluster

| journal = The Astrophysical Journal

| volume = 121

| pages = 1–9

| year = 2001

| issue = 1

| doi = 10.1086/318021

|arxiv = astro-ph/0010187 |bibcode = 2001AJ....121....1B | s2cid = 17144190

}}