35 Comae Berenices
{{Short description|Star in the constellation Coma Berenices}}
{{Starbox begin
| name = 35 Comae Berenices
}}
{{Starbox observe
| epoch = J2000
| constell = Coma Berenices
| dec = {{DEC|+21|14|41.8092}}
}}
{{Starbox character
| type =
| class = {{nowrap|G5 III + F:}}
| variable =
}}
{{Starbox astrometry
| radial_v = {{Val|−6.091|0.075}}
| parallax = 11.52
| p_error = 0.87
| absmag_v =
}}
{{Starbox orbit
| 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 catalog
| names = {{odlist | F=35 Com | BD=+22°2519 | FK5= | HD=112033 | HIP=62886 | HR=4894 | SAO=82550 | WDS=J12533+2115AB }}
}}
{{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. Based upon parallax measurements, it is located around 280 light years from the Sun. The system is moving closer to the Earth with a heliocentric radial velocity of −6 km/s.
This was found to be a wide binary by Struve in 1828, 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 eccentricity of {{Val|0.2|0.1}}. The pair have been resolved into stellar classifications of an evolved G-type giant primary of class G5 III and an F-type secondary, most likely main sequence with a class of F1 V. The primary component is a spectroscopic binary with a period of {{Convert|2908.25|±|4.27|days|years|order=flip|disp=out}} and an eccentricity of 0.63. A fourth component, 35 Com C, is located {{Val|29|ul=arcsecond}} from the primary and may have a physical association.
References
{{reflist|refs=
{{cite simbad | title=35 Com | access-date=2019-01-05 }}
| 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 }}
| 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 }}
| 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 }}
| 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 }}
| 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=. }}
}}
{{Stars of Coma Berenices}}
{{DEFAULTSORT:35 Comae Berenices}}
Category:F-type main-sequence stars