NGC 5749
{{Short description|Open cluster in the constellation Lupus}}
{{Infobox open cluster
| name = {{PAGENAME}}
| image =NGC 5749 DECaPS DR2.jpg
| caption =NGC 5749 with DECaPS
| credit =
| epoch = J2000
| constellation = Lupus
| dist_ly = {{convert|1087.9|pc|ly|order=flip|abbr=on|lk=on}}
| dist_pc =
| appmag_v = 11.23
| size_v = {{val|16.7|ul=arcminute}}
| radius_ly = {{cvt|3.6|±|0.9|pc|ly|lk=off|order=flip}} (tidal)
| mass_msol = {{val|20.8|24.0|11.2|ul=solar mass}}
| age = 27.0 Myr
| notes =
| names = NGC 5749, Cr 287, ESO 176-SC 004
|image_size=250}}
NGC 5749 is an open cluster of stars positioned near the southwest border of the southern constellation of Lupus. It is located at a distance of 3,548 light years from the Sun. This is a poorly populated cluster that shows a low level of concentration; the Trumpler class is IV1p. 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. NGC 5749 is 27 million years old with a tidal radius of 11.7 light years and a mass of {{val|21|ul=solar mass|p=~}}. Polarization measurements suggest there is a dust cloud within the cluster.
References
{{Reflist|refs=
| title=NGC 5749 | access-date=2021-12-28 }}
| 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 }}
| 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 }}
| 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 }}
| 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 }}
| 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 }}
| title=NASA/IPAC Extragalactic Database
| work=Results for NGC 5749
| url=http://nedwww.ipac.caltech.edu/
| access-date=2007-04-06 }}
}}
External links
- {{WikiSky}}
{{Sky|14|48|54|-|54|29|52|3000}}
{{Ngc60}}
{{Lupus (constellation)}}
Category:Lupus (constellation)
{{star-cluster-stub}}