| 词条 | 31 Vulpeculae |
| 释义 |
| name = 31 Vulpeculae }}{{Starbox image |image={{Location mark |image=Vulpecula constellation map.svg|alt=|float=center|width=280 |label=|position=right |mark=Red circle.svg|mark_width=10|mark_link=31 Vulpeculae |x=250|y=320 }} |caption=Location of 31 Vulpeculae (circled) }}{{Starbox observe | epoch = J2000 | constell = Vulpecula | ra = {{RA|20|52|07.67601}}[1] | dec = {{DEC|27|05|49.1173}}[1] | appmag_v = 4.56[2] }}{{Starbox character | class = G7IIIa Fe-1 Ba[2] | b-v = +0.82[3] | u-b = +0.46[3] }}{{Starbox astrometry | radial_v = +2.25[4] | prop_mo_ra = -75.44[1] | prop_mo_dec = -62.03[1] | parallax = 17.30 | p_error = 0.66 | parallax_footnote = [1] | absmag_v = 0.77[5] }}{{Starbox detail | mass = 2.53[5] | temperature = 5,525[6] | luminosity = 52.53[2] | rotational_velocity = 4.7[7] | gravity = 3.20[8] | metal_fe = -0.03[2] }}{{Starbox catalog | names = BD+26° 4017, GC 29112, HIP 103004, HR 7995, HD 198809, SAO 89228, 2MASS J20520768+2705491 }}{{Starbox reference | Simbad = 31+Vulpeculae }}{{Starbox end}}31 Vulpeculae is a class G7III[2] (yellow giant) star in the constellation Vulpecula. Its apparent magnitude is 4.56[2] and it is approximately 189 light years away based on parallax.[1] It is a suspected variable star with a magnitude that varies from 3.77 to 4.08 in the I passband,[9] and also a spectroscopic binary with a period of about 5 years.[10] 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 2. ^1 2 3 4 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 3. ^1 {{cite journal | bibcode=2014JAVSO..42..443M | title=Sloan Magnitudes for the Brightest Stars | journal=The Journal of the American Association of Variable Star Observers | volume=42 | pages=443 | author1=Mallama | first1=A. | year=2014 }}Vizier catalog entry 4. ^{{cite journal | bibcode=2008A&A...480...91S | doi=10.1051/0004-6361:20078788 |arxiv=0712.1370 | title=Vertical distribution of Galactic disk stars | journal=Astronomy and Astrophysics | volume=480 | pages=91 | year=2008 | last1=Soubiran | first1=C. | last2=Bienaymé | first2=O. | last3=Mishenina | first3=T. V. | last4=Kovtyukh | first4=V. V. }} 5. ^1 {{cite journal | bibcode=2015A&A...580A..24D | doi=10.1051/0004-6361/201525770 | title=Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets | journal=Astronomy & Astrophysics | volume=580 | pages=A24 | year=2015 | last1=Da Silva | first1=Ronaldo | last2=Milone | first2=André de C. | last3=Rocha-Pinto | first3=Helio J. }} Vizier catalog entry 6. ^{{cite journal | bibcode=2012MNRAS.427..343M | doi=10.1111/j.1365-2966.2012.21873.x |title=Fundamental parameters and infrared excesses of Hipparcos stars| journal=Monthly Notices of the Royal Astronomical Society | volume=427 | pages=343 | year=2012 | last1=McDonald | first1=I. | last2=Zijlstra | first2=A. A. | last3=Boyer | first3=M. L. |arxiv = 1208.2037 }} Vizier catalog entry 7. ^{{cite journal | bibcode=1999A&AS..139..433D | doi=10.1051/aas:1999401 | title=A catalog of rotational and radial velocities for evolved stars | journal=Astronomy and Astrophysics Supplement Series | volume=139 | issue=3 | pages=433 | year=1999 | last1=De Medeiros | first1=J. R. | last2=Mayor | first2=M. | arxiv=astro-ph/0608248 }} Vizier catalog entry 8. ^{{cite journal | bibcode=2016A&A...591A.118S | doi=10.1051/0004-6361/201628497 |arxiv=1605.07384 | title=The PASTEL catalogue: 2016 version | journal=Astronomy & Astrophysics | volume=591 | pages=A118 | year=2016 | last1=Soubiran | first1=Caroline | last2=Le Campion | first2=Jean-François | last3=Brouillet | first3=Nathalie | last4=Chemin | first4=Laurent }} 9. ^{{cite journal | bibcode=2009yCat....1.2025S |title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013) |journal=VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S|volume=1|display-authors=etal|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}} 10. ^{{cite journal | bibcode=2004A&A...424..727P | doi=10.1051/0004-6361:20041213 | arxiv=astro-ph/0406573 | title=SB9: The ninth catalogue of spectroscopic binary orbits | journal=Astronomy and Astrophysics | volume=424 | issue=2 | pages=727 | year=2004 | last1=Pourbaix | first1=D. | last2=Tokovinin | first2=A. A. | last3=Batten | first3=A. H. | last4=Fekel | first4=F. C. | last5=Hartkopf | first5=W. I. | last6=Levato | first6=H. | last7=Morrell | first7=N. I. | last8=Torres | first8=G. | last9=Udry | first9=S. }} External links
7 : Vulpecula|G-type giants|Flamsteed objects|Durchmusterung objects|Hipparcos objects|HR objects|Henry Draper Catalogue objects |
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