IC 1189

{{Short description|Lenticular galaxy}}{{Infobox galaxy|name=IC 1189|image=File:IC1189 - SDSS DR14.jpg|caption=SDSS image of IC 1189|constellation name=Hercules|ra={{RA|16|06|14.8}}|dec={{DEC|+18|10|58.3}}|z=0.039400|h_radial_v=11,812 km/s|dist_ly=557 Mly (171 Mpc)|group_cluster=Hercules Cluster|appmag_v=15.5|type=(R)SB(rs)0/a, Sbrst|size=145,000 ly|names=PGC 57135, KUG 1604+143, Mrk 300, CGCG 108-144, MCG +03-41-119, 2MASX J16061486+1810582, IRAS F16039+1819, WBL 607-030, ASK 564476.0, NSA 099884, ABELL 2151:[D80] 126, SDSS J160614.83+181058.3, LEDA 57135|notes=Starburst galaxy|epoch=J2000}}

IC 1189 is a S0-a lenticular galaxy with a ring structure{{Cite web |title=HyperLeda -object description |url=http://atlas.obs-hp.fr/hyperleda/ledacat.cgi?o=IC%201189 |access-date=2024-05-02 |website=atlas.obs-hp.fr}} located in Hercules.{{Cite web |last=Astronomy |first=Go |title=IC 1189 {{!}} galaxy in Hercules {{!}} IC List {{!}} GO ASTRONOMY |url=https://www.go-astronomy.com/ic.php?ID=1254 |access-date=2024-05-02 |website=Go-Astronomy.com |language=en-US}}{{Cite web |last=Ford |first=Dominic |title=IC1189 (Galaxy) |url=https://in-the-sky.org//data/object.php?id=IC1189 |access-date=2024-05-02 |website=In-The-Sky.org |language=en}} It is located 557 million light-years away from the Solar System and has an approximate diameter of 145,000 light-years.{{Cite web |title=Your NED Search Results |url=https://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=42371&objname=1&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1 |access-date=2024-05-02 |website=ned.ipac.caltech.edu}} IC 1189 was discovered on June 7, 1888, by Lewis Swift.{{Cite web |title=Index Catalog Objects: IC 1150 - 1199 |url=https://cseligman.com/text/atlas/ic11a.htm#ic1189 |access-date=2024-05-02 |website=cseligman.com}}{{cite journal |last=Swift |first=Lewis |title=Catalogue No. 7 of Nebulae discovered at the Warner Observatory |journal=Astronomische Nachrichten |volume=120 |pages=33 |year=1889 |bibcode=1889AN....120...33S}} It is a member of the Hercules Cluster.{{Cite web |title=Reference Lookup {{!}} NASA/IPAC Extragalactic Database |url=https://ned.ipac.caltech.edu/NED::Refcode/1979ApJ...234..793T |access-date=2024-05-02 |website=ned.ipac.caltech.edu}}{{Cite web |last=Bakich |first=Michael E. |date=2024-01-01 |title=The Hercules galaxy cluster |url=https://www.astronomy.com/science/the-hercules-galaxy-cluster/ |access-date=2024-05-02 |website=Astronomy Magazine |language=en-US}}{{Cite web |title=Hercules Cluster of Galaxies |url=https://pages.astronomy.ua.edu/gifimages/hercules.html |access-date=2024-05-02 |website=pages.astronomy.ua.edu}}

IC 1189 has an active galactic nucleus and is classified as a starburst galaxy meaning to say, it is a powerhouse star factory making stars at a rate hundred of times greater compared to the Milky Way.{{Cite web |title=Starburst Galaxies |url=https://pweb.cfa.harvard.edu/research/topic/starburst-galaxies |website=Center for Astrophysics Harvard & Smithsonian}} Additionally, it falls into the Markarian galaxies category as Mrk 300, in which its core shines in ultraviolet rays.{{Cite journal |title=1986ApJS...62..751M Page 751 |url=https://adsabs.harvard.edu/full/1986ApJS...62..751M |access-date=2024-05-02 |journal=The Astrophysical Journal Supplement Series|doi=10.1086/191155 |bibcode=1986ApJS...62..751M |last1=Mazzarella |first1=Joseph M. |last2=Balzano |first2=Vicki A. |date=1986 |volume=62 |page=751 }}