11 Orionis

{{Short description|Star in the constellation Orion}}

{{Starbox begin

| name = 11 Orionis

}}

{{Starbox image

|image=

{{Location mark

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

|label=|position=right

|mark=Red circle.svg|mark_width=10|mark_link=11 Orionis

|x=790|y=90

}}

|caption=Location of 11 Orionis (circled)

}}

{{Starbox observe

| epoch = J2000

| constell = Orion

| ra = {{RA|05|04|34.14916}}{{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%2023607 Vizier catalog entry]

| dec = {{DEC|+15|24|14.7771}}

| appmag_v = 4.65

}}

{{Starbox character

| class = B9 IV{{cite journal|bibcode= 2009A&A...501..297Z|title= Fundamental parameters of B supergiants from the BCD system. I. Calibration of the (λ_1, D) parameters into Teff|journal= Astronomy and Astrophysics|volume= 501|pages= 297–320|last1= Zorec|first1= J.|last2= Cidale|first2= L.|last3= Arias|first3= M. L.|last4= Frémat|first4= Y.|last5= Muratore|first5= M. F.|last6= Torres|first6= A. F.|last7= Martayan|first7= C.|year= 2009|issue= 1|doi= 10.1051/0004-6361/200811147|arxiv = 0903.5134 |s2cid= 14969137}} or {{nowrap|A1 Vp SiCr}}{{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 }}

| b-v = −0.06{{cite journal | bibcode=2006yCat.2168....0M | title=VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991) | journal=VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie | volume=2168 | last1=Mermilliod | first1=J. C. | year=2006 }}[http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=II/168/ubvmeans&LID=%2B100032549 Vizier catalog entry]

| u-b = −0.10

| variable = α² CVn{{cite journal | bibcode=2009yCat....102025S |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|last1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}

}}

{{Starbox astrometry

| radial_v = +16.80{{cite journal | last=Wilson | first=R. E. | year=1953 | title=General Catalogue of Stellar Radial Velocities | journal=Carnegie Institute Washington D.C. Publication | publisher=Carnegie Institution for Science | bibcode=1953GCRV..C......0W | isbn=9780598216885 | lccn=54001336 }}

| prop_mo_ra = +17.80

| prop_mo_dec = −31.15

| parallax = 8.93

| p_error = 0.24

| parallax_footnote =

| absmag_v = −0.59{{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=23607 Vizier catalog entry]

}}

{{Starbox detail

| mass = 2.7

| radius = 4.3

| temperature = 9,520

| luminosity = 220

| gravity = 3.6

| rotational_velocity = 63.3{{±|3.6}}

}}

{{Starbox catalog

| names = {{odlist | V=V1032 Ori | F=11 Ori | BD=+15°732 | FK5=1140 | HD=32549 | HIP=23607 | HR=1638 | SAO=94290 | GC=6191 }}{{cite simbad | title=11 Ori | access-date=8 September 2012}}

}}

{{Starbox reference

| Simbad = 11+Ori

}}

{{Starbox end}}

11 Orionis is a solitary{{cite journal | 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 }} Ap star in the equatorial constellation of Orion, near the border with Taurus. It is visible to the naked eye with an apparent visual magnitude of 4.65, and it is located approximately 365 light years away from the Sun based on parallax. The star is moving further from the Sun with a heliocentric radial velocity of +16.8 km/s.

File:V1032OriLightCurve.png for V1032 Orionis, plotted from TESS data]]

This object is a chemically peculiar star, known as an Ap star, with enhanced silicon and chromium lines in its spectrum.{{cite journal | bibcode=2014A&A...562A..65S | arxiv=1402.1021 | title=Spectrophotometric analysis of the 5200 Å region for peculiar and normal stars | journal=Astronomy & Astrophysics | volume=562 | pages=A65 | last1=Stigler | first1=Ch. | last2=Maitzen | first2=H. M. | last3=Paunzen | first3=E. | last4=Netopil | first4=M. | year=2014 | doi=10.1051/0004-6361/201322300 | s2cid=55166743 }} It is an α² CVn variable, ranging from 4.65 to 4.69 magnitude with a period of 4.64 days. The magnetic field measured from metal lines has a strength of {{Val|+160|390|ul=G}}.{{cite journal | title=Results of magnetic field measurements of CP-stars performed with the 6-m telescope. III. Observations in 2009 | display-authors=1 | last1=Romanyuk | first1=I. I. | last2=Semenko | first2=E. A. | last3=Kudryavtsev | first3=D. O. | last4=Moiseevaa | first4=A. V. | journal=Astrophysical Bulletin | volume=71 | issue=3 | pages=302–313 | date=July 2016 | doi=10.1134/S1990341316030056 | bibcode=2016AstBu..71..302R | s2cid=125202761 }}