NGC 4564

{{Short description|Elliptical galaxy in the constellation Virgo}}

{{Infobox Galaxy

| name = NGC 4564

| image = SDSS NGC 4564.jpeg

| caption = Sloan Digital Sky Survey image of NGC 4564.

| epoch = J2000

| type = E6{{cite web

| title=NASA/IPAC Extragalactic Database

| work=Results for NGC 4564

| url=http://nedwww.ipac.caltech.edu/

| access-date=2018-02-04}}

| ra = {{RA|12|36|27.0}}

| dec = {{DEC|11|26|21}}

| dist_ly = {{convert|17.55|Mpc|Mly|abbr=on|lk=on|order=flip}}

| group_cluster = Virgo Cluster

| h_radial_v = 1142 km/s

| z = 0.003809

| appmag_v = 12.05

| size_v = 3.5 x 1.5

| constellation name = Virgo

| names = CGCG 70-186, MCG 2-32-150, PGC 42051, UGC 7773, VCC 1664

|size=~{{convert|18.12|kpc|ly|abbr=on|lk=on|order=flip}} (estimated)

}}

NGC 4564 is an elliptical galaxy located about 57 million light-years away{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+4564&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=Your NED Search Results|website=ned.ipac.caltech.edu|access-date=2018-02-04}} in the constellation Virgo.{{Cite web|url=http://spider.seds.org/ngc/revngcic.cgi?NGC4564|title=Revised NGC Data for NGC 4564|website=spider.seds.org|access-date=2018-02-04}} NGC 4564 was discovered by astronomer William Herschel on March 15, 1784.{{Cite web|url=https://cseligman.com/text/atlas/ngc45a.htm#4564|title=New General Catalog Objects: NGC 4550 - 4599|website=cseligman.com|language=en-US|access-date=2018-02-04}} The galaxy is also a member of the Virgo Cluster.{{Cite web|url=http://www.atlasoftheuniverse.com/galgrps/vir.html|title=The Virgo Cluster|website=www.atlasoftheuniverse.com|access-date=2018-02-04}}{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+4564|title=Detailed Object Classifications|website=ned.ipac.caltech.edu|access-date=2018-02-04}}

NGC 4564 has an estimated population of 213 ± 31 globular clusters.{{Cite journal|last=Rhode|first=Katherine L.|date=2012|title=Exploring the Correlations between Globular Cluster Populations and Supermassive Black Holes in Giant Galaxies|url=http://stacks.iop.org/1538-3881/144/i=5/a=154|journal=The Astronomical Journal|language=en|volume=144|issue=5|pages=154|doi=10.1088/0004-6256/144/5/154|issn=1538-3881|arxiv=1210.4570|bibcode=2012AJ....144..154R|hdl=2022/19083|s2cid=118565802}} It is the host of a supermassive black hole with an estimated mass of about 56 million suns ({{Val|0.56e8|0.03|0.08|ul=solar mass}}).{{Cite journal|last1=Soria|first1=R.|last2=Graham|first2=Alister W.|last3=Fabbiano|first3=G.|last4=Baldi|first4=A.|last5=Elvis|first5=M.|last6=Jerjen|first6=H.|last7=Pellegrini|first7=S.|last8=Siemiginowska|first8=A.|author8-link=Aneta Siemiginowska|date=2006|title=Accretion and Nuclear Activity of Quiescent Supermassive Black Holes. II. Optical Study and Interpretation|url=http://stacks.iop.org/0004-637X/640/i=1/a=143|journal=The Astrophysical Journal|language=en|volume=640|issue=1|pages=143–155|doi=10.1086/499935|issn=0004-637X|arxiv=astro-ph/0511341|bibcode=2006ApJ...640..143S|s2cid=14584649}}