| 词条 | HD 187734 |
| 释义 |
| name=HD 187734 }}{{Starbox observe | epoch=J2000 | ra={{RA|19|51|26.84135}} | dec={{DEC|+04|05|19.0767}} | appmag_v={{val|6.6242|0.0012}}[3] {{nowrap|(6.71 + 9.42)}}[4] | constell=Aquila }}{{Starbox character | class={{nowrap|K2III + A5V}}[5] | r-i = | v-r = | b-v = | u-b = | variable= }}{{Starbox astrometry | radial_v={{val|-3.70|0.21}}[3] | prop_mo_ra=-1.70 | prop_mo_dec=-5.82 | parallax=1.31 | p_error=0.86 | parallax_footnote= | absmag_v= }}{{Starbox detail | component1=HD 187734 A | mass={{val|8.8|0.1}}[10] | radius= | luminosity=3,339[11] | temperature=4,128[11] | metal_fe= | gravity= | rotational_velocity= | age_myr={{val|29.0|3.4}} }}{{Starbox catalog | names=BD+03° 4172, HD 188385, HIP 97709, SAO 125141, WDS J19514+0405. }}{{Starbox reference | Simbad=HD+187734 }}{{Starbox end}}HD 187734 is double star in the equatorial constellation of Aquila. The primary is a magnitude 6.6 giant star, while the companion is a magnitude 9.4 A-type main sequence star.[5] As of 2014, the pair had an angular separation of 5″ along a position angle of 99°.[4] References1. ^1 2 {{citation | display-authors=1 | last1=Famaey | first1=B. | last2=Jorissen | first2=A. | last3=Luri | first3=X. | last4=Mayor | first4=M. | last5=Udry | first5=S. | last6=Dejonghe | first6=H. | last7=Turon | first7=C. | title=Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters | journal=Astronomy and Astrophysics | volume=430 | pages=165–186 | date=2005 | doi=10.1051/0004-6361:20041272 | bibcode=2005A&A...430..165F|arxiv = astro-ph/0409579 }} [1][2][3][4][5]2. ^1 {{citation | display-authors=1 | last1=Tetzlaff | first1=N. | last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M. | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun | journal=Monthly Notices of the Royal Astronomical Society | volume=410 | issue=1 | pages=190–200 | date=January 2011 | doi=10.1111/j.1365-2966.2010.17434.x | bibcode=2011MNRAS.410..190T | arxiv=1007.4883}} 3. ^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}} 4. ^1 2 {{citation | last1=Abt | first1=H. A. | title=Visual multiples. VIII - 1000 MK types | journal=Astrophysical Journal Supplement Series | volume=59 | date=September 1985 | pages=95–112 | doi=10.1086/191064 | bibcode=1985ApJS...59...95A}} 5. ^1 2 {{citation | display-authors=1 | last1=Mason | first1=B. D. | last2=Wycoff | first2=G. L. | last3=Hartkopf | first3=W. I. | last4=Douglass | first4=G. G. | last5=Worley | first5=C. E. | title=The Washington Visual Double Star Catalog | year=2014 | bibcode=2001AJ....122.3466M | url=http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=B/wds | accessdate=2015-07-22|doi = 10.1086/323920 | volume=122 | journal=The Astronomical Journal | pages=3466–3471}} }} External links
7 : Aquila (constellation)|Henry Draper Catalogue objects|Double stars|K-type giants|A-type main-sequence stars|Hipparcos objects|Durchmusterung objects |
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