| 词条 | HD 118889 |
| 释义 |
| name=HD 118889 }}{{Starbox observe | epoch=J2000 | ra={{RA|13|39|34.61613}} | dec={{DEC|+10|44|46.5827}} | appmag_v=5.58[3] {{nowrap|(6.35 + 6.47)}}[4] | constell=Boötes }}{{Starbox character | class=F0V[5] | r-i = | v-r = | b-v = +0.33[3] | u-b = +0.045[3] | variable= }}{{Starbox astrometry | radial_v=-25.9[8] | prop_mo_ra=-114.96 | prop_mo_dec=-11.74 | parallax=16.67 | p_error=0.58 | parallax_footnote= | absmag_v=+2.40[12] }}{{Starbox orbit | reference=[1] | period=22.460 ± 0.019 | axis=0.19983 ± 0.00055 | inclination=43.50 ± 0.40 | node=34.58 ± 0.52 | periastron=B 1929.850 ± 0.024 | eccentricity=0.5450 ± 0.0022 | periarg=359.93 ± 0.79 }}{{Starbox detail | mass= | radius= | luminosity=16.4[14] | temperature=7,105[14] | metal_fe= | gravity= | rotational_velocity=144[5] | age= }}{{Starbox catalog | names=BD+11° 2589, HD 118889, HIP 66640, HR 5138, SAO 100654. }}{{Starbox reference | Simbad=HD+118889 }}{{Starbox end}} HD 118889 is a binary star in the northern constellation of Boötes. References1. ^{{cite web|url=http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds/orb6|title=Sixth Catalog of Orbits of Visual Binary Stars|work=United States Naval Observatory|accessdate=21 May 2017}} [2][3][4][5][6][7]2. ^1 {{citation | title=Rotation- and temperature-dependence of stellar latitudinal differential rotation | last=Reiners | first=A. | journal=Astronomy and Astrophysics | volume=446 | issue=1 | pages=267–277 | date=January 2006 | doi=10.1051/0004-6361:20053911 | bibcode=2006A&A...446..267R | arxiv=astro-ph/0509399 | postscript=. }} 3. ^1 {{citation | display-authors=1 | last1=Holmberg | first1=J. | last2=Nordström | first2=B. | last3=Andersen | first3=J. | title=The Geneva-Copenhagen survey of the Solar neighbourhood. II. New uvby calibrations and rediscussion of stellar ages, the G dwarf problem, age-metallicity diagram, and heating mechanisms of the disk | journal=Astronomy & Astrophysics | volume=475 | issue=2 | pages=519–537 | date=2007 | arxiv=0707.1891 | bibcode=2007A&A...475..519H | doi=10.1051/0004-6361:20077221}} 4. ^1 2 {{citation | display-authors=1 | last1=Royer | first1=F. | last2=Zorec | first2=J. | last3=Gómez | first3=A. E. | title=Rotational velocities of A-type stars. III. Velocity distributions | journal=Astronomy and Astrophysics | volume=463 | issue=2 | pages=671–682 |date=February 2007 | doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R | arxiv=astro-ph/0610785}} 5. ^1 2 3 {{citation | last1=Mermilliod | first1=J.-C. | title=Compilation of Eggen's UBV data, transformed to UBV (unpublished) | journal=Catalogue of Eggen's UBV data. SIMBAD | date=1986 | bibcode=1986EgUBV........0M}} 6. ^1 {{citation | display-authors=1 | last1=Malkov | first1=O. Yu. | last2=Tamazian | first2=V. S. | last3=Docobo | first3=J. A. | last4=Chulkov | first4=D. A. | title=Dynamical Masses of a Selected Sample of Orbital Binaries | journal=Astronomy & Astrophysics | volume=546 | id=A69 | pages=5 | date=2012 | doi=10.1051/0004-6361/201219774 | bibcode =2012A&A...546A..69M}} 7. ^1 2 {{citation | display-authors=1 | last1=McDonald | first1=I. | last2=Zijlstra | first2=A. A. | last3=Boyer | first3=M. L. | title=Fundamental Parameters and Infrared Excesses of Hipparcos Stars | journal=Monthly Notices of the Royal Astronomical Society | volume=427 | issue=1 | pages=343–57 | date=2012 | bibcode=2012MNRAS.427..343M | arxiv=1208.2037 | doi=10.1111/j.1365-2966.2012.21873.x}} }} External links
7 : Boötes|Henry Draper Catalogue objects|Binary stars|Hipparcos objects|F-type main-sequence stars|HR objects|Durchmusterung objects |
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