| 词条 | Phi Ophiuchi |
| 释义 |
| name = φ Ophiuchi }}{{Starbox image |image={{Location mark |image=Ophiuchus constellation map.svg|alt=|float=center|width=280 |label=|position=right |mark=Red circle.svg|mark_width=10|mark_link=Phi Ophiuchi |x=733|y=728 }} |caption=Location of φ Ophiuchi (circled) }}{{Starbox observe | epoch = J2000 | constell = Ophiuchus | ra = {{RA|16|31|08.36732}}[1] | dec = {{DEC|-16|36|45.8306}}[1] | appmag_v = 4.27[2] }}{{Starbox character | class = G8+IIIa[3] | b-v = +0.92[2] | u-b = +0.71[2] }}{{Starbox astrometry | radial_v = -33.46[4] | prop_mo_ra = -45.35[1] | prop_mo_dec = -37.34[1] | parallax = 13.39 | p_error = 0.24 | parallax_footnote = [1] | absmag_v = -0.08[5] }}{{Starbox detail | mass = 3.16[6] | radius = 13.40[6] | temperature = 5,131[6] | luminosity = 112[6] | rotational_velocity = 3.6[7] | gravity = 2.82[8] | metal_fe = +0.20[8] }}{{Starbox catalog | names = BD-16 4298, CCDM J16311-1636A, 8 Ophiuchi, GC 22200, HIP 80894, HR 6147, HD 148786, SAO 159963, WDS J16311-1637A }}{{Starbox reference | Simbad = Phi+Ophiuchi }}{{Starbox end}}Phi Ophiuchi (φ Oph) is a class G8+IIIa[3] (yellow giant) star in the constellation Ophiuchus. Its apparent magnitude is 4.27[2] and it is approximately 244 light years away based on parallax.[1] It is a multiple star with two companions, B, at magnitude 12.9 and separation 41.3", and C, at magnitude 10.8 and separation 119.8".[9] References1. ^1 2 3 4 5 {{cite journal | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653 | year=2007 | last1=Van Leeuwen | first1=F. }} Vizier catalog entry {{Stars of Ophiuchus}}{{giant-star-stub}}{{multi-star-stub}}2. ^1 2 3 {{cite journal |bibcode=2002yCat.2237....0D |title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system |journal=CDS/ADC Collection of Electronic Catalogues |volume=2237 |author1=Ducati |first1=J. R. |year=2002 }} 3. ^1 {{cite journal | bibcode=1995yCat.5050....0H | title=VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) | journal=VizieR On-line Data Catalog: V/50. Originally published in: 1964BS....C......0H | volume=5050 | author1=Hoffleit | first1=D. | last2=Warren | first2=W. H. | year=1995 }} 4. ^{{cite journal | bibcode=2008AJ....135..209M | doi=10.1088/0004-6256/135/1/209 | title=Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity | journal=The Astronomical Journal | volume=135 | pages=209 | year=2008 | last1=Massarotti | first1=Alessandro | last2=Latham | first2=David W. | last3=Stefanik | first3=Robert P. | last4=Fogel | first4=Jeffrey }} 5. ^{{cite journal | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | title=XHIP: An extended hipparcos compilation | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | last1=Anderson | first1=E. | last2=Francis | first2=Ch. }} Vizier catalog entry 6. ^1 2 3 {{cite journal | arxiv=1412.4634 | bibcode=2015A&A...574A.116R | doi=10.1051/0004-6361/201322360 | title=Precise radial velocities of giant stars | journal=Astronomy & Astrophysics | volume=574 | pages=A116 | year=2015 | last1=Reffert | first1=Sabine | last2=Bergmann | first2=Christoph | last3=Quirrenbach | first3=Andreas | last4=Trifonov | first4=Trifon | last5=Künstler | first5=Andreas | hdl=10722/215277 }} Vizier catalog entry 7. ^{{cite journal | bibcode=2014A&A...561A.126D | doi=10.1051/0004-6361/201220762 | arxiv=1312.3474 | title=A catalog of rotational and radial velocities for evolved stars | journal=Astronomy & Astrophysics | volume=561 | pages=A126 | year=2014 | last1=De Medeiros | first1=J. R. | last2=Alves | first2=S. | last3=Udry | first3=S. | last4=Andersen | first4=J. | last5=Nordström | first5=B. | last6=Mayor | first6=M. }} Vizier catalog entry 8. ^1 {{cite journal | bibcode=2011A&A...525A..71W | doi=10.1051/0004-6361/201015014 | arxiv=1009.1491 | title=Coudé-feed stellar spectral library – atmospheric parameters | journal=Astronomy & Astrophysics | volume=525 | pages=A71 | year=2010 | last1=Wu | first1=Yue | last2=Singh | first2=H. P. | last3=Prugniel | first3=P. | last4=Gupta | first4=R. | last5=Koleva | first5=M. }} 9. ^{{cite journal | bibcode=2001AJ....122.3466M | doi=10.1086/323920 | title=The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog | journal=The Astronomical Journal | volume=122 | issue=6 | pages=3466 | year=2001 | last1=Mason | first1=Brian D. | last2=Wycoff | first2=Gary L. | last3=Hartkopf | first3=William I. | last4=Douglass | first4=Geoffrey G. | last5=Worley | first5=Charles E. }} Vizier catalog entry 8 : Ophiuchus (constellation)|G-type giants|Bayer objects|Durchmusterung objects|Flamsteed objects|Hipparcos objects|HR objects|Henry Draper Catalogue objects |
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