Iota Tauri: Difference between revisions

{{Short description|Double star in the constellation Taurus}}

{{Starbox begin

| name = ι Tauri

{{Starbox image

|image=

{{Location mark

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

|label=|position=right

|mark=Red circle.svg|mark_width=10|mark_link=Iota Tauri

|x=325|y=397

}}

|caption=Location of ι Tauri (circled)

}}

{{Starbox observe

| epoch = J2000

| constell = [[Taurus (constellation)|Taurus]]

| ra = {{RA|05|03|05.74725}}<ref name=vanLeeuwen2007>{{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=653–664 | year=2007 | last1=Van Leeuwen | first1=F. | s2cid=18759600 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-S?HIP%2023497 Vizier catalog entry]</ref>

| dec = {{DEC|21|35|23.8627}}<ref name=vanLeeuwen2007/>

| appmag_v = 4.62<ref name=XHIP>{{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. | s2cid=119257644 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=V/137D/XHIP&HIP=23497 Vizier catalog entry]</ref>

}}

{{Starbox character

| class = A7&nbsp;V<ref name=Abt1995>{{cite journal | bibcode=1995ApJS...99..135A | title=The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars | journal=Astrophysical Journal Supplement | volume=99 | pages=135 | last1=Abt | first1=Helmut A. | last2=Morrell | first2=Nidia I. | year=1995 | doi=10.1086/192182 | doi-access=free }}</ref>

| b-v = +0.16<ref name=Mallama2014>{{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 | last1=Mallama | first1=A. | year=2014 | issue=2 }}[http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/other/JAVSO/42.443/ugriz&HD=032301 Vizier catalog entry]</ref>

| u-b = +0.15<ref name=Mallama2014/>

}}

{{Starbox astrometry

| radial_v = +38.30<ref name=Gontcharov2006>{{Cite journal | doi=10.1134/S1063773706110065 | bibcode=2006AstL...32..759G| 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| year=2006| last1=Gontcharov| first1=G. A.|arxiv = 1606.08053 | s2cid=119231169}}</ref>

| prop_mo_ra = +68.88<ref name=vanLeeuwen2007/>

| prop_mo_dec = -41.06<ref name=vanLeeuwen2007/>

| parallax = 18.88

| p_error = 0.30

| parallax_footnote = <ref name=vanLeeuwen2007/>

| absmag_v = 1.00<ref name=XHIP/>

}}

{{Starbox detail

| mass = 2.22<ref name=Zorec2012>{{cite journal | arxiv=1201.2052 | bibcode=2012A&A...537A.120Z | doi=10.1051/0004-6361/201117691 | title=Rotational velocities of A-type stars | journal=Astronomy & Astrophysics | volume=537 | pages=A120 | year=2012 | last1=Zorec | first1=J. | last2=Royer | first2=F. | s2cid=55586789 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/A%2bA/537/A120/table1&HD=32301 Vizier catalog entry]</ref>

| radius = 2.6<ref name=AllendePrieto>{{cite journal | bibcode=1999A&A...352..555A | arxiv=astro-ph/9911002 | title=Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures | journal=Astronomy and Astrophysics | volume=352 | pages=555–562 | last1=Allende Prieto | first1=C. | last2=Lambert | first2=D. L. | year=1999 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/A%2bA/352/555/table1&Name=HIP23497 Vizier catalog entry]</ref>

| temperature = 8,054<ref name=Zorec2012/>

| luminosity = 36<ref name=Zorec2012/>

| rotational_velocity = 131<ref name=Zorec2012/>

| gravity = 3.97<ref name=David2015>{{cite journal | bibcode=2015ApJ...804..146D | doi=10.1088/0004-637X/804/2/146 | arxiv=1501.03154 | title=The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets | journal=The Astrophysical Journal | volume=804 | issue=2 | pages=146 | year=2015 | last1=David | first1=Trevor J. | last2=Hillenbrand | first2=Lynne A. | s2cid=33401607 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/ApJ/804/146/table5&HIP=23497 Vizier catalog entry]</ref>

| metal_fe = +0.15<ref name=XHIP/>

| age_myr = 717<ref name=David2015/>

}}

{{Starbox catalog

| names = {{odlist | B=ι&nbsp;Tau | F=102&nbsp;Tauri | BD=+21°&nbsp;751 | FK5=184 | HD=32301 | HIP=23497 | HR=1620 | SAO=76920 | GC=6158 | GSC=01293-02747 | WDS=J05031+2135AB }}

}}

{{Starbox reference

| Simbad = Iota+Tauri

}}

{{Starbox end}}

'''Iota Tauri''', [[Latinisation of names|Latinized]] from ι Tauri, is a white-hued [[star]] in the [[zodiac]] [[constellation]] [[Taurus (constellation)|Taurus]] and an outlying member of the [[Hyades (star cluster)|Hyades]] [[open cluster|star cluster]].<ref name=Varenne1999>{{citation | title=Chemical abundances of A and F-type stars: the Hyades open cluster | last1=Varenne | first1=O. | last2=Monier | first2=R. | journal=Astronomy and Astrophysics | volume=351 | pages=247–266 | date=November 1999 | bibcode=1999A&A...351..247V | postscript=. }}</ref> It is visible to the naked eye with an [[apparent visual magnitude]] of 4.62,<ref name=XHIP/> and is located at an estimated distance of about 173&nbsp;[[light year]]s based upon [[stellar parallax|parallax measurements]].<ref name=vanLeeuwen2007/> The star is moving away from the Sun with a [[radial velocity]] of +38&nbsp;km/s.<ref name=Gontcharov2006/>

This has been reported as a double star with two components at separation 0.1", both of type A7V and magnitude 5.4.<ref name=WDS>{{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. | doi-access=free }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=B/wds/wds&WDS=05031%2B2135 Vizier catalog entry]</ref><ref name=Eggleton2008>{{cite journal | bibcode=2008MNRAS.389..869E | doi=10.1111/j.1365-2966.2008.13596.x | arxiv = 0806.2878 | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869 | year=2008 | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | doi-access=free | s2cid=14878976 }} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=J/MNRAS/389/869/table1&mHR=1620 Vizier catalog entry]</ref> The combined [[stellar spectrum|spectrum]] matches a [[stellar classification]] of A7&nbsp;V,<ref name=Abt1995/> which would normally indicate an [[A-type main-sequence star]] that is generating energy through [[hydrogen fusion]] at its [[stellar core|core]]. It has an estimated age of 717<ref name=David2015/>&nbsp;million years.

==References==

{{reflist}}

{{Stars of Taurus}}

{{DEFAULTSORT:Iota Tauri}}

[[Category:A-type main-sequence stars]]

[[Category:Hyades (star cluster)]]

[[Category:Bayer objects|Tauri, Iota]]

[[Category:Taurus (constellation)]]

[[Category:Durchmusterung objects|BD+21 0751]]

[[Category:Flamsteed objects|Tauri, 102]]

[[Category:Henry Draper Catalogue objects|032301]]

[[Category:Hipparcos objects|023497]]

[[Category:Bright Star Catalogue objects|1620]]