16 Comae Berenices
{{Short description|Star in the constellation Coma Berenices}}
{{Starbox begin
| name = 16 Comae Berenices
}}
{{Starbox observe
| epoch = J2000
| dec = {{DEC|+26|49|32.5273}}
| constell = Coma Berenices
}}
{{Starbox character
| b-v =
| u-b =
| variable =
}}
{{Starbox astrometry
| radial_v = {{Val|+0.40|0.70}}
| parallax = 11.6745
| p_error = 0.2116
| absmag_v =
}}
{{Starbox detail
| mass = {{Val|2.54|0.03}}
| luminosity = {{Val|68.6|3.5|3.3}}
| temperature = {{Val|8299|57|58|fmt=commas}}
| rotational_velocity = 80
}}
{{Starbox catalog
| names = {{odlist | F=16 Com | BD=+27°2134 | FK5=2997 | HD=108382 | HIP=60746 | HR=4738 | SAO=82314 }}
}}
{{Starbox reference
| Simbad=16+Com
}}
{{Starbox end}}
16 Comae Berenices is a single star in the northern constellation of Coma Berenices. 16 Comae Berenices is the Flamsteed designation. It is a member of the Coma Star Cluster and is visible to the naked eye with an apparent visual magnitude of 4.96. Based upon an annual parallax shift of {{Val|11.7|ul=mas}}, it is located about 279 light years away.
This is a chemically-peculiar A-type main-sequence star with a stellar classification of A4 V. It displays an infrared excess, suggesting the presence of an orbiting debris disk at a mean distance of {{Val|18.2|ul=AU}} with a temperature of {{Val|180|u=K}}. 16 Com has 2.54 times the mass of the Sun and 3.71 times the Sun's radius. The star is 310 million years old with a projected rotational velocity of 80 km/s. It is radiating 67 times the Sun's luminosity from its photosphere at an effective temperature of 8,299 K.
References
{{reflist|refs=
{{cite simbad | title=16 Com | access-date=2019-01-05 }}
{{Cite Gaia DR2|4008867605880031872}}
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| title=A catalogue of multiplicity among bright stellar systems
| journal=Monthly Notices of the Royal Astronomical Society
| volume=389 | issue=2 | pages=869–879 | date=September 2008
| doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | bibcode=2008MNRAS.389..869E
| arxiv=0806.2878 | s2cid=14878976 | postscript=. }}
| last1=Gebran | first1=M. | last2=Monier | first2=R.
| last3=Richard | first3=O. | display-authors=1
| title=Chemical composition of A and F dwarf members of the Coma Berenices open cluster
| journal=Astronomy and Astrophysics
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| doi=10.1051/0004-6361:20078807 | postscript=.
| bibcode=2008A&A...479..189G | arxiv=0712.0244 | s2cid=118369727 }}
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| last5=Watson | first5=V. | display-authors=1
| title=A new method for the inversion of atmospheric parameters of A/Am stars
| journal=Astronomy & Astrophysics
| volume=589 | pages=A83 | year=2016
| doi=10.1051/0004-6361/201528052 | postscript=.
| bibcode=2016A&A...589A..83G | arxiv=1603.01146 | s2cid=118549566 }}
| last1=Zorec | first1=J. | last2=Royer | first2=F.
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| last5=Ramirez | first5=Ivan | last6=Melendez | first6=Jorge
| last7=Bensby | first7=Thomas | last8=Feltzing | first8=Sofia
| title=Rotational velocities of A-type stars. IV. Evolution of rotational velocities
| display-authors=1 | journal=Astronomy and Astrophysics
| volume=537 | pages=A120 | year=2012 | postscript=.
| arxiv=1201.2052 | bibcode=2012A&A...537A.120Z
| doi=10.1051/0004-6361/201117691 | s2cid=55586789 }}
| title=A Comprehensive Census of Nearby Infrared Excess Stars
| last1=Cotten | first1=Tara H. | last2=Song | first2=Inseok
| journal=The Astrophysical Journal Supplement Series
| volume=225 | issue=1 | id=15 | pages=24 | date=July 2016
| doi=10.3847/0067-0049/225/1/15 | bibcode=2016ApJS..225...15C
| arxiv=1606.01134 | s2cid=118438871 | postscript=. | doi-access=free }}
| last1=David | first1=Trevor J. | last2=Hillenbrand | first2=Lynne A.
| title=The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets
| journal=The Astrophysical Journal
| volume=804 | issue=2 | pages=146 | year=2015
| bibcode=2015ApJ...804..146D | doi=10.1088/0004-637X/804/2/146
| arxiv=1501.03154 | s2cid=33401607 | postscript=. }}
| last1=de Bruijne | first1=J. H. J. | last2=Eilers | first2=A.-C.
| title=Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project
| journal=Astronomy & Astrophysics
| volume=546 | id=A61 | pages=14 | date=October 2012
| doi=10.1051/0004-6361/201219219 | bibcode=2012A&A...546A..61D
| arxiv=1208.3048 | s2cid=59451347 | postscript=. }}
}}
{{Stars of Coma Berenices}}
{{DEFAULTSORT:16 Comae Berenices}}
Category:A-type main-sequence stars