NGC 6352
{{Short description|Globular cluster in the constellation Ara}}
{{Infobox globular cluster
| name = NGC 6352
| image = NGC 6352.jpg
| caption =
| epoch = J2000
| constellation = Ara
| dist_ly = {{Convert|5.6|kpc|kly|order=flip|1|abbr=on|lk=on}}
| mass_kg =
| radius_tidal_arcminsec = {{val|10.5|u=arcsecond}}
| radius_ly =
| v_hb =
| age = 12.67 Gyr
| notes =
| names = {{odlist | name=Caldwell 81 | name2=Cr 328 | NGC=6352 }}
}}
NGC 6352 (also known as Caldwell 81) is a globular cluster of stars in the southern constellation of Ara, located approximately {{Convert|5.6|kpc|kly|1|disp=out|abbr=on|lk=on}} from the Sun. It was discovered by Scottish astronomer James Dunlop on May 14, 1826. The cluster has a Shapley–Sawyer Concentration Class of XI:. A telescope with a {{Convert|15|cm|in|abbr=on}} aperture is required to resolve the stars within this loose cluster.
This cluster is about 12.67 billion years old with two distinct stellar populations; the second generation is only around 10 million years younger than the first. It lies approximately {{convert|4|kpc|kly|order=flip|abbr=on|lk=off}} from the Galactic Center and {{convert|0.5|kpc|kly|order=flip|abbr=on|lk=off}} from the galactic plane. The orbital motion of this cluster through the Milky Way suggests it is a member of the bulge or disk population. It is relatively metal-rich for an object of this class, having a metallicity of –0.70. The core radius is {{val|49.8|u=arcsecond}} and the tidal radius is {{val|10.5|u=arcsecond}}.
References
{{Reflist|refs=
| title=NGC 6352 | access-date=2020-02-26 }}
| first=Stephen James | last=O'Meara
| title=Deep Sky Companions: The Caldwell Objects
| year=2002
| isbn=0-521-82796-5 | page=324 | publisher=Cambridge University Press
}}
| url=https://cseligman.com/text/atlas/ngc63a.htm#6352
| title=New General Catalogue objects: NGC 6350 - 6399
| last=Seligman | first=Courtney | website=cseligman.com
| access-date=2020-09-20 }}
| title=ROSAT observations of ten globular clusters with large core radii.
| display-authors=1 | last1=Johnston | first1=H. M.
| last2=Verbunt | first2=F. | last3=Hasinger | first3=G.
| journal=Astronomy and Astrophysics | postscript=.
| volume=309 | pages=116–122 | date=May 1996
| bibcode=1996A&A...309..116J }}
| title=A VIC Color-Magnitude Diagram of the Globular Cluster NGC 6352 From Hubble Space Telescope Planetary Camera Observations
| last1=Fullton | first1=L. K. | last2=Carney | first2=B. W.
| last3=Olszewski | first3=E. W. | last4=Zinn | first4=R.
| last5=Demarque | first5=P. | last6=Janes | first6=K. A.
| last7=Da Costa | first7=G. S. | last8=Seitzer | first8=P.
| display-authors=1 | journal=Astronomical Journal
| volume=110 | page=652 | date=August 1995 | postscript=.
| doi=10.1086/117552 | bibcode=1995AJ....110..652F | doi-access= }}
| title=Bayesian Analysis of Two Stellar Populations in Galactic Globular Clusters. II. NGC 5024, NGC 5272, and NGC 6352
| last1=Wagner-Kaiser | first1=R. | last2=Stenning | first2=D. C.
| last3=Robinson | first3=E. | last4=von Hippel | first4=T.
| last5=Sarajedini | first5=A. | last6=van Dyk | first6=D. A.
| last7=Stein | first7=N. | last8=Jefferys | first8=W. H.
| display-authors=1 | journal=The Astrophysical Journal
| volume=826 | issue=1 | id=42 | pages=18 | date=July 2016
| arxiv=1604.06074 | bibcode=2016ApJ...826...42W
| doi=10.3847/0004-637X/826/1/42 | s2cid=119244229 | doi-access=free }}
| title=The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XVIII. Proper-motion Kinematics of Multiple Stellar Populations in the Core Regions of NGC 6352
| last1=Libralato | first1=Mattia | last2=Bellini | first2=Andrea
| last3=Piotto | first3=Giampaolo | last4=Nardiello | first4=Domenico
| last5=van der Marel | first5=Roeland P. | last6=Anderson | first6=Jay
| last7=Bedin | first7=Luigi R. | last8=Vesperini | first8=Enrico
| display-authors=1 | journal=The Astrophysical Journal
| volume=873 | issue=2 | id=109 | pages=12 | date=March 2019
| arxiv=1902.02787 | bibcode=2019ApJ...873..109L
| doi=10.3847/1538-4357/ab0551 | s2cid=119222605 | postscript=. | doi-access=free }}
| last1=Goldsbury | first1=Ryan | last2=Richer | first2=Harvey B.
| last3=Anderson | first3=Jay | last4=Dotter | first4=Aaron
| last5=Sarajedini | first5=Ata | last6=Woodley | first6=Kristin
| title=The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters
| display-authors=1 | journal=The Astronomical Journal
| volume=140 | issue=6 | pages=1830–1837 |date=December 2010
| bibcode=2010AJ....140.1830G | arxiv=1008.2755
| doi=10.1088/0004-6256/140/6/1830 | s2cid=119183070 | postscript=. }}
| last=Dunlop | first=Storm | year=2005
| title=Atlas of the Night Sky
| url=https://archive.org/details/collinsatlasofni0000dunl
| url-access=registration | publisher=HarperCollins | isbn=978-0-00-717223-8 }}
| last1=Shapley | first1=Harlow | last2=Sawyer | first2=Helen B.
| title=A Classification of Globular Clusters
| journal=Harvard College Observatory Bulletin
| volume=849 | issue=849 | pages=11–14 | date=August 1927
| bibcode=1927BHarO.849...11S | postscript=. }}
| 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 | postscript=.
| bibcode=2010MNRAS.404.1203F | arxiv=1001.4289 | s2cid=51825384 }}
| last1=Marks | first1=Michael | last2=Kroupa | first2=Pavel
| title=Initial conditions for globular clusters and assembly of the old globular cluster population of the Milky Way
| journal=Monthly Notices of the Royal Astronomical Society
| volume=406 | issue=3 | pages=2000–2012 | date=August 2010
| doi=10.1111/j.1365-2966.2010.16813.x | doi-access=free | postscript=.
| bibcode=2010MNRAS.406.2000M | arxiv=1004.2255 | s2cid=118652005 }} Mass is from MPD on Table 1.
}}
External links
- {{commonscat-inline}}
{{Catalogs|NGC=6352|C-81|Collinder=328}}
{{Caldwell catalogue}}
{{NGC65}}
{{Ara (constellation)}}
{{DEFAULTSORT:Ngc 6352}}