Editing Coma Berenices (section)

==== Brightest stars ====
[[Image:ComaBerenicesCC.jpg|thumb|left|alt=Photo of Coma Berenices' three visible stars, which form a triangle|Coma Berenices as seen by the naked eye]]
Coma Berenices is not particularly bright, as none of its stars are brighter than fourth [[apparent magnitude|magnitude]],<ref>{{cite web | url =http://www.prao.ru/Constellations/mif/vol_veroniki.html|title=Волосы Вероники|publisher=Pushchino Radioastronomic Observatory| language=ru| access-date =20 July 2016}}</ref> although there are 66 stars brighter than or equal to [[apparent magnitude]]&nbsp;6.5.{{efn|1=Objects of magnitude 6.5 are among the faintest visible to the unaided eye in suburban–rural transition night skies.<ref>{{cite web|url=http://www.skyandtelescope.com/resources/darksky/3304011.html?page=1&c=y|archive-url=https://archive.today/20121216144730/http://www.skyandtelescope.com/resources/darksky/3304011.html?page=1&c=y|url-status=dead|archive-date=2012-12-16|title=The Bortle Dark-Sky Scale|last=Bortle|first=John E.|date=February 2001|work=[[Sky & Telescope]]|access-date=28 August 2017}}</ref>}}<ref name=tirionconst>{{cite web| url=http://www.ianridpath.com/constellations1.html | title=Constellations: Andromeda–Indus | work= Star Tales |author=Ridpath, Ian |author-link=Ian Ridpath|publisher=self-published | access-date= 26 August 2015}}</ref>

The constellation's brightest star is [[Beta Comae Berenices]] (43 Comae Berenices in [[Flamsteed designation]]), at magnitude 4.2 and with a high [[proper motion]]. In Coma Berenices' northeastern region, it is 29.95 ± 0.10 [[light-year]]s from Earth.<ref name=Gaia-DR2beta>{{cite DR2|1460229369573307264}}</ref> A [[solar analog]], it is a yellow-hued [[F-type main-sequence star]] with a [[spectral class]] of F9.5V B.<ref>{{cite simbad | title =bet Com | access-date =19 November 2016}}</ref> Beta Comae Berenices is around 36% brighter,<ref name=apj746_1_101>{{cite journal | last1=Boyajian | first1=Tabetha S. | last2=McAlister | first2=Harold A. | last3=van Belle | first3=Gerard | last4=Gies | first4=Douglas R. | last5=ten Brummelaar | first5=Theo A. | last6=von Braun | first6=Kaspar | last7=Farrington | first7=Chris | last8=Goldfinger | first8=P. J. | last9=O'Brien | first9=David | last10=Parks | first10=J. Robert | last11=Richardson | first11=Noel D. | last12=Ridgway | first12=Stephen | last13=Schaefer | first13=Gail | last14=Sturmann | first14=Laszlo | last15=Sturmann | first15=Judit | last16=Touhami | first16=Yamina | last17=Turner | first17=Nils H. | last18=White | first18=Russel | title=Stellar Diameters and Temperatures. I. Main-sequence A, F, and G Stars | journal=The Astrophysical Journal | volume=746 | issue=1 | page=101 |date=2012 | doi=10.1088/0004-637X/746/1/101 | bibcode=2012ApJ...746..101B | arxiv=1112.3316 | s2cid=18993744 }}. See Table 10.</ref> and 15% more massive than the [[Sun]],<ref name=apjss168>{{cite journal | last1=Takeda | first1=G. | last2=Ford | first2=E. B. | last3=Sills | first3=A. | last4=Rasio | first4=F. A. | last5=Fischer | first5=D. A. | last6=Valenti | first6=J. A. | title=Stellar parameters of nearby cool stars. II. Physical properties of ~1000 cool stars from the SPOCS catalog | journal=Astrophysical Journal Supplement Series | volume=168 | issue=2 | pages=297–318 | year=2007 | bibcode=2007ApJS..168..297T | doi=10.1086/509763|arxiv = astro-ph/0607235 | s2cid=18775378 }} ''Note:'' see VizieR catalogue [http://cdsarc.u-strasbg.fr/viz-bin/Cat?J/ApJS/168/297 J/ApJS/168/297].</ref> and with a radius 10% larger.<ref name=apj746_1_101/>

The second-brightest star in Coma Berenices is the 4.3-magnitude, bluish [[Alpha Comae Berenices]] (42 Comae Berenices), with the [[Proper names (astronomy)|proper name]] Diadem,<ref name="IAU-LSN">{{cite web | url=https://www.iau.org/public/themes/naming_stars/ | title=Naming Stars |publisher=IAU.org |access-date=16 July 2022}}</ref> in the southeastern part of the constellation. Despite its Alpha [[Bayer designation]], the star is dimmer than Beta Comae Berenices, being one of the cases where designation does not correspond to the brightest star. It is a [[double star]], with the spectral classes of F5V and F6V.<ref>{{cite simbad |title=alf Com | access-date =22 November 2016}}</ref> <!-- To be reffed Because its [[orbital plane (astronomy)|orbital plane]] is near the Earth's line of sight, it was long suspected of being an eclipsing [[binary star]]. It now appears that Alpha Comae Berenices's orbital tilt is 0.1° relative to the line of sight, so the stars do not eclipse each other when seen from Earth.--> The star system is 58.1 ± 0.9 light-years from Earth.<ref name="vanLeeuwen2007">{{cite journal | first=F. | last=van Leeuwen | title=Validation of the New Hipparcos Reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–64 | date=2007 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | arxiv=0708.1752| s2cid=18759600 }}</ref>

[[Gamma Comae Berenices]] (15 Comae Berenices) is an orange-hued [[giant star]] with a magnitude of 4.4 and a spectral class of K1III C. In the southwestern part of the constellation, it is 169 ± 2 light-years from Earth,<ref name=Gaia-DR2gamma>{{cite DR2|4009317512294635008}}</ref> Estimated to be around 1.79 times as massive as the Sun,<ref name=Luck>{{cite journal|bibcode=2015AJ....150...88L|doi=10.1088/0004-6256/150/3/88|arxiv=1507.01466|title=Abundances in the Local Region. I. G and K Giants|journal=The Astronomical Journal|volume=150|issue=3|pages=88|year=2015|last1=Luck|first1=R. Earle|s2cid=118505114}}</ref> it has expanded to around 10 times its radius.<ref name=cadars2>{{cite journal
 | display-authors=1 | last1=Pasinetti Fracassini | first1=L. E.
 | last2=Pastori | first2=L. | last3=Covino | first3=S. | last4=Pozzi | first4=A.
 | title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)
 | edition=Third | journal=Astronomy & Astrophysics
 | volume=367 | issue=2 | pages=521–24 | date=2001
 | bibcode=2001A&A...367..521P | arxiv=astro-ph/0012289
 | doi=10.1051/0004-6361:20000451 | s2cid=425754 }} [http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=II/224/cadars.dat&recno=5636 HD 108381] Accessed on line October 12, 2010.</ref> It is the brightest star in the [[Coma Star Cluster]].<ref>{{cite web | url =http://www.jdso.org/volume10/number1/Schlimmer_25_28.pdf|title=Discovery of Small Companions of Comae and TYC 1989-00307-1 in Constellation Coma Berenices and a Possible New Common Proper Motion Pair in the Constellation Canes Venatici |author=Joerg S. Schlimmer |work=Journal of Double Star Observations | date=January 1, 2014| access-date =25 November 2016}}</ref> With Alpha Comae Berenices and Beta Comae Berenices, Gamma Comae Berenices forms a 45-degree [[isosceles triangle]] from which Berenice's imaginary tresses hang.