{{Short description|Star in the constellation Coma Berenices}} {{Starbox begin}} {{Starbox image | image = {{Location mark |image=Coma Berenices constellation map.svg|alt=|float=center|width=280 |label=|position=right |mark=Red circle.svg|mark_width=10|mark_link=35 Comae Berenices |x=268|y=455 }} | caption = Location of 35 Comae Berenices (circled in red) }} {{Starbox observe | epoch = J2000 | constell = [[Coma Berenices]] | ra = {{RA|12|53|17.74703}}<ref name=vanLeeuwen2007/> | dec = {{DEC|+21|14|41.8092}}<ref name=vanLeeuwen2007/> | appmag_v = 4.93<ref name=perkins1989/> }} {{Starbox character | type = | class = {{nowrap|G5 III + F:}}<ref name=perkins1989/> | b-v = 0.90<ref name=Griffin1988/> | u-b = 0.65<ref name=Griffin1988/> | variable = }} {{Starbox astrometry | radial_v = {{Val|−6.091|0.075}}<ref name=Halbwachs2012/> | prop_mo_ra = −37.66<ref name=vanLeeuwen2007/> | prop_mo_dec = −30.14<ref name=vanLeeuwen2007/> | parallax = 11.52 | p_error = 0.87 | parallax_footnote = <ref name=vanLeeuwen2007/> | absmag_v = }} {{Starbox orbit | reference = <ref name=Drummond2014/> | period = {{Val|539.4|95.4}} | axis = {{Val|1.405|0.046}} | eccentricity = {{Val|0.208|0.100}} | inclination = {{Val|28.4|13.4}} | node = {{Val|238.7|2.7}} | periastron = {{Val|1949.4|7.9}} | periarg = {{Val|251.6|7.3}} }}<!-- {{Starbox detail | source = | mass = | radius = | luminosity = | temperature = | gravity = | metal_fe = | rotational_velocity = | age_myr = }} -->{{Starbox catalog | names = {{odlist | F=35 Com | BD=+22°2519 | FK5= | HD=112033 | HIP=62886 | HR=4894 | SAO=82550 | WDS=J12533+2115AB }}<ref name=SIMBAD/> }} {{Starbox reference | Simbad=35+Com }} {{Starbox end}}
'''35 Comae Berenices''' is a [[multiple star system]] in the northern [[constellation]] of [[Coma Berenices]], located about 6° from the [[north galactic pole]]. It is faintly visible to the naked eye with an [[apparent visual magnitude]] of 4.93.<ref name=perkins1989/> Based upon [[stellar parallax|parallax]] measurements, it is located around 280 [[light year]]s from the Sun.<ref name=vanLeeuwen2007/> The system is moving closer to the Earth with a heliocentric [[radial velocity]] of −6 km/s.<ref name=Halbwachs2012/>
This was found to be a wide binary by [[Friedrich Georg Wilhelm von Struve|Struve]] in 1828,<ref name=Griffin1988/> but it has completed less than half an orbit since then and the orbital elements remain poorly constrained. It has an [[orbital period]] of {{Val|539|95|u=years}} and an [[orbital eccentricity|eccentricity]] of {{Val|0.2|0.1}}.<ref name=Drummond2014/> The pair have been resolved into [[stellar classification]]s of an [[stellar evolution|evolved]] [[G-type star|G-type]] [[giant star|giant]] primary of class G5 III and an [[F-type star|F-type]] secondary,<ref name=perkins1989/> most likely [[main sequence]] with a class of F1 V.<ref name=Griffin1988/> The primary component is a [[spectroscopic binary]]<ref name=Griffin1988/> with a period of {{Convert|2908.25|±|4.27|days|years|order=flip|disp=out}} and an eccentricity of 0.63.<ref name=Halbwachs2012/> A fourth component, 35 Com C, is located {{Val|29|ul=arcsecond}} from the primary and may have a physical association.<ref name=Griffin1988/>
==References== <references> <ref name=SIMBAD>{{cite simbad | title=35 Com | access-date=2019-01-05 }}</ref>
<ref name=Griffin1988>{{citation | title=The giant spectroscopic binary 35 Comae | last1=Griffin | first1=R. F. | last2=Beavers | first2=W. I. | last3=Eitter | first3=J. J. | display-authors=1 | journal=Publications of the Astronomical Society of the Pacific | volume=100 | pages=358–361 | date=March 1988 | postscript=. | doi=10.1086/132177 | bibcode=1988PASP..100..358G | doi-access=free }}</ref>
<ref name=perkins1989>{{citation | title=The Perkins catalog of revised MK types for the cooler stars | last1=Keenan | first1=Philip C. | last2=McNeil | first2=Raymond C. | journal=Astrophysical Journal Supplement Series | volume=71 | pages=245 | year=1989 | postscript=. | bibcode=1989ApJS...71..245K | doi=10.1086/191373 }}</ref>
<ref name=Drummond2014>{{citation | title=Binary Stars Observed with Adaptive Optics at the Starfire Optical Range | last1=Drummond | first1=Jack D. | journal=The Astronomical Journal | postscript=. | volume=147 | issue=3 | id=65 | pages=10 | date=March 2014 | doi=10.1088/0004-6256/147/3/65 | bibcode=2014AJ....147...65D | doi-access=free }}</ref>
<ref name=Halbwachs2012>{{citation | last1=Halbwachs | first1=J.-L. | last2=Mayor | first2=M. | last3=Udry | first3=S. | display-authors=1 | title=Double stars with wide separations in the AGK3 - I. Components that are themselves spectroscopic binaries | journal=Monthly Notices of the Royal Astronomical Society | volume=422 | issue=1 | pages=14–24 | date=May 2012 | doi=10.1111/j.1365-2966.2012.20308.x | bibcode=2012MNRAS.422...14H | postscript=. | doi-access=free }}</ref>
<ref name=vanLeeuwen2007>{{citation | title=Validation of the new Hipparcos reduction | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | s2cid=18759600 | postscript=. }}</ref> </references>
{{Stars of Coma Berenices}}
[[Category:G-type giants]] [[Category:F-type main-sequence stars]] [[Category:Multiple star systems|4]] [[Category:Coma Berenices]] [[Category:Durchmusterung objects|BD+22 2519]] [[Category:Flamsteed objects|Comae Berenices, 35]] [[Category:Henry Draper Catalogue objects|112033]] [[Category:Hipparcos objects|062886]] [[Category:Bright Star Catalogue objects|4894]]