{{Short description|Globular cluster in the constellation Lupus}} {{Infobox globular cluster | | name = [[New General Catalogue|NGC]] 5824 | image = [[File:NGC 5824 hst 05902 R555G439B336.png|250px]] | caption = NGC 5824, imaged by the [[Hubble Space Telescope]] | credit = | epoch = [[J2000]] | class = I | constellation = [[Lupus (constellation)|Lupus]] | ra = {{RA|15|03|58.6}}<ref name="ned">{{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 5824 | url=http://nedwww.ipac.caltech.edu/ | access-date=2007-04-06}}</ref> | dec = {{DEC|–33|04|07}}<ref name="ned" /> | dist_ly = 104.4 [[Light-year#Distances in light-years|kly]] | appmag_v = 9.09 | size_v = 6.2' | mass_kg = | mass_msol = | radius_ly = | v_hb = | metal_fe = –1.60<ref name=mnras404_3_1203/> | age = 12.80&nbsp;[[Gigayear|Gyr]]<ref name=mnras404_3_1203/> | notes = | names = ESO 387-SC 001<ref name="ned" /> }}

'''NGC 5824''' is a [[globular cluster]] in the [[constellation]] [[Lupus (constellation)|Lupus]], almost on its western border with [[Centaurus (constellation)|Centaurus]]. Astronomers [[James Dunlop]] (1826), [[John Herschel]] (1831) and [[Edward Emerson Barnard|E.E. Barnard]] (1882) all claim to have independently discovered the cluster. It is condensed and may be observed with small telescopes, but larger apertures are required to resolve its stellar core.<ref name="iceinspace">{{cite web | title=NGC 5824 [Archive] | url=http://www.iceinspace.com.au/forum/archive/index.php/t-45923.html | access-date=June 18, 2011}}</ref><ref>{{cite journal |date=August 1992 |title=Deep-Sky Wonders |journal=Sky & Telescope |page=226 }}</ref>

A stellar stream, known as the Triangulum stellar stream, is thought to have originated from NGC 5824. It is located quite far from NGC 5824 and is part of its leading tail. Meanwhile, its trailing tail has also been detected, spanning about 50 degrees through the sky.<ref>{{cite journal|doi=10.1051/0004-6361/202243976 |bibcode=2022A&A...667A..37Y |arxiv=2208.05197 |title=Existence of tidal tails for the globular cluster NGC 5824 |year=2022 |last1=Yang |first1=Yong |last2=Zhao |first2=Jing-Kun |last3=Ishigaki |first3=Miho N. |last4=Chiba |first4=Masashi |last5=Yang |first5=Cheng-Qun |last6=Xue |first6=Xiang-Xiang |last7=Ye |first7=Xian-Hao |last8=Zhao |first8=Gang |journal=Astronomy & Astrophysics |volume=667 |pages=A37 |s2cid=251468198 }}</ref>

== See 217 (HD 132955) == As seen from [[Earth]], the location of NGC 5824 is half a degree south-southeast of the double star See 217 (HD 132955), magnitude +5. Amateur astronomers could use See 217 as guidestar to try to detect NGC 5824.

==References== <references> <ref name=mnras404_3_1203>{{citation | last1=Forbes | first1=Duncan A. | last2=Bridges | first2=Terry | title=Accreted versus in situ Milky Way globular clusters | journal=[[Monthly Notices of the Royal Astronomical Society]] | volume=404 | issue=3 | pages=1203–1214 |date=May 2010 | doi=10.1111/j.1365-2966.2010.16373.x | doi-access=free | bibcode=2010MNRAS.404.1203F | postscript=. |arxiv = 1001.4289 | s2cid=51825384 }}</ref> </references>

==External links== *{{Commons category-inline}} *{{Sky-Map.org}}

{{NGC objects:5500-5999}} {{Lupus (constellation)}}

{{Sky|15|03|58.6|-|33|04|07|104400}}

[[Category:Globular clusters]] [[Category:Lupus (constellation)]] [[Category:NGC objects|5824]]

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