| 词条 | Psi Centauri |
| 释义 |
| name = ψ Centauri }}{{Starbox observe | epoch = J2000.0 | constell = Centaurus | ra = {{RA|14|20|33.43}} | dec = {{DEC|−37|53|07.1}} | appmag_v = +4.05[3] }}{{Starbox character | class = A0 IV[4] | b-v = −0.03[4] | u-b = −0.11[4] | variable = none }}{{Starbox astrometry | radial_v = −5 | prop_mo_ra = {{Val|-63.69|0.18}} | prop_mo_dec = {{Val|-10.65|0.15}} | parallax = 12.60 | p_error = 0.20 | parallax_footnote = | absmag_v = {{Val|−0.35|0.14}}[10] }}{{Starbox detail | source = | component1 = ψ Cen A | mass = 3.114[11] | radius = 3.634[11] | luminosity = 141[11] | temperature = 10,450[11] | gravity = {{Val|3.76|0.04}}[10] | metal_fe = | rotational_velocity = 101[10] | age_myr = 269[10] | component2 = ψ Cen B | mass2 = 1.909[11] | radius2 = 1.811[11] | luminosity2 = 18[11] | temperature2 = 8,800[11] }}{{Starbox catalog | names = {{odlist | B=ψ Cen | CD=−37° 9336 | FK5=1373 | HD=125473 | HIP=70090 | HR=5367 | SAO=205453 | GC=19337 | CCDM=J14206-3753 }} }}{{Starbox reference | Simbad = HD+125473 }}{{Starbox end}}Psi Centauri (ψ Cen, ψ Centauri) is a binary star[22] system in the constellation Centaurus. The primary component is a white A-type subgiant with an apparent magnitude of +4.05.[3] It is approximately 259 light years from Earth. The pair are orbiting each other with a period of 38.81 days and an eccentricity of 0.55.[22] The system displays an infrared excess at a wavelength of 60 μm, indicating the presence of a circumstellar debris disk with a temperature of 120 K, orbiting at a distance of 64 AU.[25] References1. ^1 2 3 4 5 6 7 8 {{citation | title=Main-Sequence Effective Temperatures from a Revised Mass-Luminosity Relation Based on Accurate Properties | display-authors=1 | last1=Eker | first1=Z. | last2=Soydugan | first2=F. | last3=Soydugan | first3=E. | last4=Bilir | first4=S. | last5=Yaz Gökçe | first5=E. | last6=Steer | first6=I. | last7=Tüysüz | first7=M. | last8=Şenyüz | first8=T. | last9=Demircan | first9=O. | journal=The Astronomical Journal | postscript=. | volume=149 | issue=4 | id=131 | pages=16 | date=April 2015 | doi=10.1088/0004-6256/149/4/131 | bibcode=2015AJ....149..131E |arxiv = 1501.06585 }} Vizier catalog entry [1][2][3][4][5][6]2. ^1 2 {{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | postscript=. }} 3. ^1 2 {{citation | display-authors=1 | last1=Johnson | first1=H. L. | last2=Iriarte | first2=B. | last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z. | title=UBVRIJKL photometry of the bright stars | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | issue=99 | year=1966 | bibcode=1966CoLPL...4...99J | postscript=. }} 4. ^1 {{citation | last1=Rhee | first1=Joseph H. | last2=Song | first2=Inseok | last3=Zuckerman | first3=B. | last4=McElwain | first4=Michael | display-authors=1 | journal=The Astrophysical Journal | title=Characterization of Dusty Debris Disks: The IRAS and Hipparcos Catalogs | volume=660 | issue=2 | pages=1556–1571 |date=May 2007 | doi=10.1086/509912 | bibcode=2007ApJ...660.1556R | arxiv=astro-ph/0609555 | postscript=. }} 5. ^1 2 3 {{citation | last=Buscombe | first=W. | title=Spectral classification of Southern fundamental stars | journal=Mount Stromlo Observatory Mimeogram | volume=4 | year=1962 | postscript=. | bibcode=1962MtSOM...4....1B }} 6. ^1 2 3 4 {{citation | display-authors=1 | last1=Gerbaldi | first1=M. | last2=Faraggiana | first2=R. | last3=Burnage | first3=R. | last4=Delmas | first4=F. | last5=Gómez | first5=A. E. | last6=Grenier | first6=S. | title=Search for reference A0 dwarf stars: Masses and luminosities revisited with HIPPARCOS parallaxes | journal=Astronomy and Astrophysics Supplement | postscript=. | volume=137 | issue=2 | pages=273–292 |date=June 1999 | doi=10.1051/aas:1999248 | bibcode=1999A&AS..137..273G }} }}{{Stars of Centaurus}}{{Subgiant-star-stub}} 7 : Bayer objects|Centaurus (constellation)|A-type subgiants|Hipparcos objects|Henry Draper Catalogue objects|HR objects|Durchmusterung objects |
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