NGC 3156

{{short description|Galaxy in the constellation Sextans}}

{{Infobox galaxy

| name = NGC 3156

| image = NGC3156 - Measure of a great galactic disc (potw2337a).jpg

| caption = NGC 3156 by Hubble Space Telescope

| credit = NASA/JPL-Caltech

| constellation name = Sextans

| epoch = J2000

| ra = {{RA|10|12|41.24591}}{{cite DR2|3835911437532871040}}

| dec = {{DEC|+03|07|45.6939}}

| h_radial_v = 1242 km/s

| z = 0.00415

| dist_ly = {{cvt|22.28|±|0.14|Mpc|Mly|lk=on|order=flip}}{{cite journal|title=Cosmicflows-2: The Data|author1=Tully, R. Brent|display-authors=etal|journal=The Astronomical Journal|volume=146|issue=4|date=2013|page=86 |bibcode=2013AJ....146...86T|doi=10.1088/0004-6256/146/4/86|arxiv=1307.7213|s2cid=118494842 }}

| group_cluster =

| type = S0{{cite web|url=http://leda.univ-lyon1.fr/ledacat.cgi?o=NGC%203156|title=Search specification: NGC 3156|work=HyperLeda|publisher=Université Claude Bernard Lyon 1|accessdate=2021-02-18}}

| size =

| appmag_v = 12.30

| appmag_b = 13.07

| absmag_v =

| size_v =

| notes =

| names = {{odlist|UGC=5503|MCG=+01-26-019|PGC=29730}}{{cite simbad|title=NGC 3156|accessdate=2021-02-18}}

}}

NGC 3156 is a lenticular galaxy located in the constellation Sextans.{{Cite journal |last1=Stone |first1=Nicholas C. |last2=van Velzen |first2=Sjoert |date=2016-06-30 |title=An enhanced rate of tidal disruptions in the centrally overdense E+A galaxy NGC 3156 |journal=The Astrophysical Journal |volume=825 |issue=1 |pages=L14 |doi=10.3847/2041-8205/825/1/L14|arxiv=1604.02056 |bibcode=2016ApJ...825L..14S |s2cid=118479040 |doi-access=free }}{{Cite web |title=Central regions of the early-type galaxies in the NGC 3169 group |url=https://www.researchgate.net/publication/225659895 |access-date=2020-09-27 |website=ResearchGate |language=en}}{{Cite web |title=A Preferred Home for Disrupted Stars |url=https://aasnova.org/2016/07/13/a-preferred-home-for-disrupted-stars/ |access-date=2020-09-27 |website=aasnova.org |date=13 July 2016 |publisher=American Astronomical Society |language=en-US}} It is located at a distance of about 75 million light-years from Earth and is forming a pair with NGC 3169. It was discovered by astronomer William Herschel on December 13, 1784.{{cite web|url=http://cseligman.com/text/atlas/ngc31a.htm#3156|title=New General Catalogue objects: NGC 3150 - 3199|author=Seligman, Courtney|website=cseligman.com|accessdate=2021-02-18}}

It is a member of the NGC 3166 Group of galaxies, which is a member of the Leo II Groups, a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster.{{cite web | title=The Leo III Groups |work=Atlas of the Universe |url=http://www.atlasoftheuniverse.com/galgrps/leoii.html |access-date=2010-11-27 |archive-date=July 22, 2012 |archive-url=https://archive.today/20120722223749/http://www.atlasoftheuniverse.com/galgrps/leoii.html |url-status=live }}{{cite simbad|title=NAME NGC 3166 Group|accessdate=2021-02-18}}