32 Tauri

{{short description|Yellow-white hued subgiant star in the constellation Taurus.}}

{{Starbox image

| image=

{{Location mark

|image=Taurus constellation map.svg|alt=|float=center|width=280

|label=|position=right

|mark=Red circle.svg|mark_width=8|mark_link=32 Tau

|x=748|y=370

}}

|caption=Location of 32 Tauri (circled)

}}

{{Starbox observe

| epoch = J2000.0

| constell = Taurus

| ra = {{RA|03|56|52.077}}

| dec = {{DEC|+22|28|40.70}}

| appmag_v = 5.62

}}

{{Starbox character

| class = F2IVs

| b-v = {{val|+0.345|0.004}}

| u-b = +0.00

| variable =

}}

{{Starbox astrometry

| radial_v = +31.90

| prop_mo_ra = +70.674

| prop_mo_dec = −114.026

| pm_footnote =

| parallax = 22.5957

| p_error = 0.0385

| parallax_footnote =

| absmag_v = 2.42

}}

{{Starbox detail

| mass = 2.04

| radius = 2.75

| luminosity = 15.4

| gravity = 3.87

| temperature = 6.901

| metal_fe = −0.19

| rotation =

| rotational_velocity = 19.7

| age_gyr = 2.1

}}

{{Starbox catalog

| names = {{odlist | BD=+22°605 | FK5=2283 | HD=24740 | HIP=18471 | HR=1218 | SAO=76339}}, Ross 33

}}

{{Starbox reference

| Simbad = 32+Tau

}}

32 Tauri is the Flamsteed designation for a solitary star in the zodiac constellation of Taurus. It has a visual magnitude of 5.64, making it visible to the naked eye from suburban skies (according to the Bortle scale). The position of this star near the ecliptic plane means that it is subject to occultations by the Moon. Parallax measurements put it at a distance of 144 light years from the Sun. It is drifting further away with a radial velocity of +31.9 km/s, having come to within {{convert|27.27|pc|ly|disp=out|abbr=off}} some 759,000 years ago.

The spectrum of this star matches a stellar classification of F2IVs, with the luminosity class of IV indicating that this star has reached the subgiant stage and is in the process of evolving into a giant star. It has twice the mass of the sun with nearly three times the Sun's radius, but 15 times the Sun's luminosity and about half the Sun's age. The abundance of elements other than hydrogen and helium is lower in this star than in the Sun. The effective temperature of the star's outer atmosphere is {{val|6,901|u=K}}, giving it the white-hued glow of an F-type star.

References

{{reflist|refs=

{{citation

| display-authors=1 | last1=Gáspár | first1=András

| last2=Rieke | first2=George H. | last3=Ballering | first3=Nicholas

| title=The Correlation between Metallicity and Debris Disk Mass

| journal=The Astrophysical Journal

| volume=826 | issue=2 | pages=171 | year=2016

| bibcode=2016ApJ...826..171G | postscript=. | arxiv=1604.07403 | doi=10.3847/0004-637x/826/2/171| s2cid=119241004 | doi-access=free }}

{{citation|postscript=.|display-authors=1 |last1=Stassun |first1=Keivan G. |last2=Oelkers |first2=Ryan J. |last3=Pepper |first3=Joshua |last4=Paegert |first4=Martin |last5=De Lee |first5=Nathan |last6=Torres |first6=Guillermo |last7=Latham |first7=David W. |last8=Charpinet |first8=Stéphane |last9=Dressing |first9=Courtney D. |last10=Huber |first10=Daniel |last11=Kane |first11=Stephen R. |last12=Lépine |first12=Sébastien |last13=Mann |first13=Andrew |last14=Muirhead |first14=Philip S. |last15=Rojas-Ayala |first15=Bárbara |last16=Silvotti |first16=Roberto |last17=Fleming |first17=Scott W. |last18=Levine |first18=Al |last19=Plavchan |first19=Peter |title=The TESS Input Catalog and Candidate Target List |journal=The Astronomical Journal |date=September 2018 |volume=156 |issue=3 |pages=102 |doi=10.3847/1538-3881/aad050 |arxiv=1706.00495 |bibcode=2018AJ....156..102S |issn=0004-6256|doi-access=free }}

{{citation

| display-authors=1 | last1=Gray | first1=R. O.

| last2=Napier | first2=M. G. | last3=Winkler | first3=L. I.

| title=The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars

| journal=The Astronomical Journal

| volume=121 | issue=4 | pages=2148–2158 | date=April 2001

| doi=10.1086/319956 | doi-access=free

| bibcode=2001AJ....121.2148G | postscript=. }}

{{citation

| last1=Anderson | first1=E. | last2=Francis | first2=Ch.

| title=XHIP: An extended hipparcos compilation

| journal=Astronomy Letters

| volume=38 | issue=5 | pages=331 | year=2012

| bibcode=2012AstL...38..331A | arxiv=1108.4971

| doi=10.1134/S1063773712050015 | s2cid=119257644 | postscript=. }}

{{citation

| last1=Gontcharov | first1=G. A.

| title=Pulkovo Compilation of Radial Velocities for 35,495 Hipparcos stars in a common system

| journal=Astronomy Letters

| volume=32 | issue=11 | pages=759–771 | date=November 2006

| doi = 10.1134/S1063773706110065

| bibcode=2006AstL...32..759G

| postscript=.

|arxiv = 1606.08053 | s2cid=119231169

}}

{{citation

| display-authors=1

| last1=Casagrande | first1=L.

| last2=Schönrich | first2=R.

| last3=Asplund | first3=M.

| last4=Cassisi | first4=S.

| last5=Ramírez | first5=I.

| last6=Meléndez | first6=J.

| last7=Bensby | first7=T.

| last8=Feltzing | first8=S.

| title=New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey

| journal=Astronomy & Astrophysics

| volume=530 | issue=A138 | pages=21 | date=2011

| doi=10.1051/0004-6361/201016276

| bibcode=2011A&A...530A.138C

| postscript=.

|arxiv = 1103.4651 | s2cid=56118016 }}

{{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

| doi-access=free

| bibcode=2008MNRAS.389..869E

| arxiv=0806.2878

| s2cid=14878976

| postscript=.

}}

{{citation

| last1=Barry | first1=T. D.

| last2=Blatchford | first2=J. A.

| title=Occultations of stars by the moon

| journal=Astronomical Journal

| volume=41 | issue=956 | page=80 | date=May 1931

| doi=10.1086/105033

| bibcode=1931AJ.....41...80B

| postscript=.

| doi-access=free}}

{{citation

|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=.

|url-status=dead

|archive-url=https://web.archive.org/web/20120318151427/http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html

|archive-date=March 18, 2012

}}

{{citation

| title=Investigating the possible connection between λ Bootis stars and intermediate Population II type stars

| display-authors=1 | last1=Paunzen | first1=E.

| last2=Iliev | first2=I. Kh. | last3=Fossati | first3=L.

| last4=Heiter | first4=U. | last5=Weiss | first5=W. W.

| journal=Astronomy & Astrophysics

| volume=567 | id=A67 | pages=8 | date=July 2014

| doi=10.1051/0004-6361/201423817 | bibcode=2014A&A...567A..67P

| arxiv=1406.3936 | s2cid=56332289 | postscript=. }}

{{citation

| last1=Mermilliod | first1=J.-C.

| title=Compilation of Eggen's UBV data, transformed to UBV (unpublished)

| journal=Catalogue of Eggen's UBV Data. SIMBAD

| date=1986 | bibcode=1986EgUBV........0M

| postscript=.

}}

{{citation

| title=A catalog of rotational and radial velocities for evolved stars. V. Southern stars

| journal=Astronomy & Astrophysics | volume=561 | date=January 2014 | pages=27

| bibcode= 2014A&A...561A.126D | arxiv=1312.3474 | doi= 10.1051/0004-6361/201220762| s2cid=54046583 }}

{{cite simbad

| title=32 Tau

| access-date=2015-11-05

}}

Category:F-type subgiants

Category:Taurus (constellation)