zeta Volantis
{{Short description|Binary star in the constellation Volans}}
{{Starbox begin
| name = ζ Volantis
}}
{{Starbox image
| image=
{{Location mark
| image=Volans IAU.svg
| float=center | width=250 | position=right
| mark=Red circle.svg | mark_width=10 | mark_link=ζ Vol
| x%=55.0 | y%=53.2
}}
| caption=Location of ζ Volantis
}}
{{Starbox observe
| epoch = J2000.0
| constell = Volans
| appmag_v = {{val|3.918|0.003}}
}}
{{Starbox character
| type = Giant star
| u-b =
| variable =
}}
{{Starbox astrometry
| radial_v = {{val|48.5|0.14}}
| prop_mo_ra = +36.179
| prop_mo_dec = +14.816
| parallax = 22.4377
| p_error = 0.0947
}}
{{Starbox detail
| mass = {{val|1.224|0.155}}
| radius = {{val|10.677|0.255}}
| gravity = {{val|2.82|0.09}}
| temperature = {{val|4788|37|fmt=commas}}
| metal_fe = {{Val|-0.17|0.03}}
| rotational_velocity =
| age_gyr = {{val|5.1|1.515}}
}}
{{Starbox catalog
| names = {{odlist | B=ζ Vol | CP=−72°627 | FK5=297 | HD=63295 | HIP=37504 | HR=3024 | SAO=256438 }}
}}
{{Starbox reference
| Simbad = zet+Vol
}}
{{Starbox end}}
Zeta Volantis, Latinized from ζ Volantis, is a binary star system in the southern constellation of Volans. It has an apparent visual magnitude of 3.92, which is bright enough to be seen with the naked eye. Based upon parallax measurements by the Gaia spacecraft, it is approximately {{Convert|145.4|ly|pc|abbr=off|lk=on|adj=ri0}} from the Sun. The companion is a magnitude 9.7 star at an angular separation of {{val|16.7|ul=″}}. Based upon their motion through space, this system made its perihelion passage some 858,000 years ago when it came within {{cvt|6.6|pc|ly|order=flip}} of the Sun. It is currently moving away with a radial velocity of 48 km/s.
The primary component is K-type giant star with a stellar classification of K0 III. It has a derived luminosity of around 60 times that of the Sun, 1.2 times the Sun's mass and is about 5.1 billion years old. At this age, it has expanded to 10.7 times the Sun's size. The expanded outer envelope has an effective temperature of {{val|4788|ul=K|fmt=commas}}, giving it the orange glow of a K-type star.
References
{{reflist|refs=
| last1=Houk | first1=Nancy
| last2=Cowley | first2=A. P.
| title=Michigan catalogue of two-dimensional spectral types for the HD stars
| publication-place=Ann Arbor, Michigan
| publisher=Dept. of Astronomy, University of Michigan
| year=1979 | volume=1
| bibcode=1978mcts.book.....H | postscript=. }}
| 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 | doi-access=free | bibcode=2008MNRAS.389..869E
| arxiv=0806.2878 | s2cid=14878976 | postscript=. }}
| title=Close encounters of the stellar kind
| last1=Bailer-Jones | first1=C. A. L. | journal=Astronomy & Astrophysics
| volume=575 | id=A35 | pages=13 | date=March 2015
| doi=10.1051/0004-6361/201425221 | bibcode=2015A&A...575A..35B
| arxiv=1412.3648 | s2cid=59039482 | postscript=. }}
| title=The Colour of Stars
| date=December 21, 2004
| work=Australia Telescope, Outreach and Education
| publisher=Commonwealth Scientific and Industrial Research Organisation
| url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html
| access-date=2012-01-16
| postscript=.
| archive-date=2013-12-03
| archive-url=https://web.archive.org/web/20131203222826/http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html
| url-status=dead
}}
| title=XHIP: An extended hipparcos compilation
| last1=Anderson | first1=E. | last2=Francis | first2=Ch.
| journal=Astronomy Letters
| volume=38 | issue=5 | pages=331 | year=2012
| bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015
| arxiv=1108.4971 | s2cid=119257644 | postscript=. }}
{{Cite journal |last1=Gomes da Silva |first1=J. |last2=Santos |first2=N. C. |last3=Adibekyan |first3=V. |last4=Sousa |first4=S. G. |last5=Campante |first5=T. L. |last6=Figueira |first6=P. |last7=Bossini |first7=D. |last8=Delgado-Mena |first8=E. |last9=Monteiro |first9=M. J. P. F. G. |last10=de Laverny |first10=P. |last11=Recio-Blanco |first11=A. |last12=Lovis |first12=C. |date=2021-02-01 |title=Stellar chromospheric activity of 1674 FGK stars from the AMBRE-HARPS sample. I. A catalogue of homogeneous chromospheric activity |url=https://ui.adsabs.harvard.edu/abs/2021A&A...646A..77G |journal=Astronomy and Astrophysics |volume=646 |pages=A77 |doi=10.1051/0004-6361/202039765 |issn=0004-6361|arxiv=2012.10199 |bibcode=2021A&A...646A..77G }} [https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/A%2BA/646/A77&Star=zet%20Vol Zeta Volantis' database entry] at VizieR.
{{Cite Gaia DR3|5263150888430619904}}
| title=zet Vol -- High proper-motion Star
| work=SIMBAD Astronomical Database
| publisher=Centre de Données astronomiques de Strasbourg
| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Zeta+Vol
| access-date=2016-09-05 | postscript=. }}
}}
{{Stars of Volans}}
{{DEFAULTSORT:Zeta Volantis}}