{{Short description|Open cluster in the constellation Lupus}} {{Infobox open cluster | name = NGC 5749 | image =NGC 5749 DECaPS DR2.jpg | caption =NGC 5749 with DECaPS | credit = <!-- Per MOS:CREDITS, credits are discouraged --> | epoch = [[J2000]] | constellation = [[Lupus (constellation)|Lupus]] | ra = {{RA|14|48|49.(0)}}<ref name=Cantat-Gaudin_Anders_2020/> | dec = {{DEC|-54|30|0(7)}}<ref name="ned" /> | dist_ly = {{convert|1087.9|pc|ly|order=flip|abbr=on|lk=on}}<ref name=Cantat-Gaudin_Anders_2020/> | dist_pc = | appmag_v = 11.23 | size_v = {{val|16.7|ul=arcminute}}<ref name=Cantat-Gaudin_Anders_2020/> | radius_ly = {{cvt|3.6|±|0.9|pc|ly|lk=off|order=flip}}<ref name=Piskunov_et_al_2008/>&nbsp;(tidal) | mass_msol = {{val|20.8|24.0|11.2|ul=solar mass}}<ref name=Piskunov_et_al_2008/> | age = 27.0&nbsp;[[Myr]]<ref name=Medhi_Tamura_2013/> | notes = | names = [[New General Catalogue|NGC]] 5749, [[Collinder catalogue|Cr]] 287, ESO 176-SC 004<ref name=SIMBAD/> }}

'''NGC 5749''' is an [[open cluster]] of stars positioned near the southwest border of the southern [[constellation]] of [[Lupus (constellation)|Lupus]]. It is located at a distance of 3,548&nbsp;[[light year]]s from the [[Sun]].<ref name=Cantat-Gaudin_Anders_2020/> This is a poorly populated cluster that shows a low level of concentration;<ref name=Vergne_et_al_2007/> the [[Trumpler class]] is IV1p.<ref name=Claria_Lapasset_1992/> There are 112 stars brighter than magnitude 14.4 within an angular radius of {{val|15|u=arcminute|p=~}} of the cluster center, but only about 30% of these are members.<ref name=Claria_Lapasset_1992/> NGC 5749 is 27<ref name=Medhi_Tamura_2013/>&nbsp;million years old with a [[tidal radius]] of 11.7&nbsp;light years and a mass of {{val|21|ul=solar mass|p=~}}.<ref name=Piskunov_et_al_2008/> Polarization measurements suggest there is a dust cloud within the cluster.<ref name=Cantat-Gaudin_Anders_2020/>

==References== {{Reflist|refs=

<ref name=SIMBAD>{{cite simbad | title=NGC 5749 | access-date=2021-12-28 }}</ref>

<ref name=Claria_Lapasset_1992>{{cite journal | title=New Color-Magnitude Diagrams and Basic Parameters of the Open Cluster NGC 5749 | last1=Claria | first1=Juan J. | last2=Lapasset | first2=E. | journal=Acta Astronomica | volume=42 | pages=343–353 | date=October 1992 | bibcode=1992AcA....42..343C }}</ref>

<ref name=Vergne_et_al_2007>{{cite journal | title=Optical multicolor polarization observations in the region of the open cluster NGC 5749 | display-authors=1 | last1=Vergne | first1=M. M. | last2=Feinstein | first2=C. | last3=Martínez | first3=R. | journal=Astronomy and Astrophysics | volume=462 | issue=2 | date=February 2007 | pages=621–626 | doi=10.1051/0004-6361:20042124 | bibcode=2007A&A...462..621V | doi-access=free | hdl=11336/44582 | hdl-access=free }}</ref>

<ref name=Piskunov_et_al_2008>{{cite journal | title=Tidal radii and masses of open clusters | display-authors=1 | last1=Piskunov | first1=A. E. | last2=Schilbach | first2=E. | last3=Kharchenko | first3=N. V. | last4=Röser | first4=S. | last5=Scholz | first5=R. -D. | journal=Astronomy and Astrophysics | volume=477 | issue=1 | date=January 2008 | pages=165–172 | doi=10.1051/0004-6361:20078525 | bibcode=2008A&A...477..165P | doi-access=free }}</ref>

<ref name=Medhi_Tamura_2013>{{cite journal | title=Cluster membership probability: polarimetric approach | last1=Medhi | first1=Biman J. | last2=Tamura | first2=Motohide | journal=Monthly Notices of the Royal Astronomical Society | volume=430 | issue=2 | pages=1334–1343 | date=April 2013 | doi=10.1093/mnras/sts714 | doi-access=free | arxiv=1212.6840 | bibcode=2013MNRAS.430.1334M }}</ref>

<ref name=Cantat-Gaudin_Anders_2020>{{cite journal | title=Clusters and mirages: cataloguing stellar aggregates in the Milky Way | last1=Cantat-Gaudin | first1=T. | last2=Anders | first2=F. | journal=Astronomy & Astrophysics | volume=633 | id=A99 | pages=22 | date=January 2020 | doi=10.1051/0004-6361/201936691 | arxiv=1911.07075 | bibcode=2020A&A...633A..99C | s2cid=208138247 }}</ref>

<ref name="ned">{{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 5749 | url=http://nedwww.ipac.caltech.edu/ | access-date=2007-04-06 }}</ref>

}}

==External links== * {{WikiSky}}

{{Sky|14|48|54|-|54|29|52|3000}} {{Ngc60}} {{Lupus (constellation)}}

[[Category:Open clusters]] [[Category:Lupus (constellation)]] [[Category:NGC objects|5749]]

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