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{{Starbox begin
| name = ξ 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=ξ Orionis
|x=336|y=120
}}
|caption=Location of ξ Orionis (circled)
}}{{Starbox observe
| epoch = J2000.0
| equinox = J2000.0 (ICRS)
| constell = Orion
| ra = {{RA|06|11|56.39693}}
| dec = {{DEC|+14|12|31.5555}}
| appmag_v = 4.47[3]
}}{{Starbox character
| class = B3 IV[4]
| u-b = −0.65[3]
| b-v = −0.19[3]
| r-i =
}}{{Starbox astrometry
| radial_v = +19.30[7]
| prop_mo_ra = +0.29
| prop_mo_dec = −20.12
| parallax = 5.37
| p_error = 0.23
| parallax_footnote =
| absmag_v =
}}{{Starbox orbit
| reference = [11]
| period_unitless = 45.1 d
| axis =
| axis_unitless =
| eccentricity = 0.26
| periastron = 2441962.3 JD
| periarg = 205
| k1 = 22.4
}}{{Starbox detail
| component1 = ξ Ori A
| mass = {{Val|6.7|0.1}}[4]
| radius =
| luminosity = 1,390[13]
| temperature = 15,476[13]
| gravity =
| metal_fe =
| rotational_velocity = 160[15]
| rotation =
| age_myr = {{Val|32.1|4.3}}[4]
}}{{Starbox catalog
| names = ξ Ori, 70 Orionis, BD+14° 1187, HD 42560, HIP 29426, HR 2199, SAO 95362.[17]
}}{{Starbox reference
| Simbad = ksi+Ori
}}{{Starbox end}}Xi Orionis (ξ Orionis) is a binary star system in the northeastern part of the constellation of Orion, well above the red giant star, Betelgeuse in the sky. It lies next to another blue main-sequence star, Nu Orionis which is somewhat closer at 520 light years. The apparent visual magnitude of Xi Orionis is 4.47,[3] which is bright enough to be seen with the naked eye. The distance to this star, as determined using the parallax method, is roughly 610 light years.This is a spectroscopic binary star system with an orbital period of 45.1 days and an eccentricity of 0.26.[11] The primary component is a B-type subgiant star with a stellar classification of B3 IV.[4] With an estimated age of just 32 million years,[4] it has a relatively high rate of spin, showing a projected rotational velocity of 160 km/s.[15] Xi Orionis has about 6.7 times the mass of the Sun,[4] and shines with 1,390 times the solar luminosity from its outer atmosphere at an effective temperature of 15,476 K.[13] References1. ^1 2 3 {{citation | display-authors=1 | last1=McDonald | first1=I. | last2=Zijlstra | first2=A. A. | last3=Boyer | first3=M. L. | title=Fundamental Parameters and Infrared Excesses of Hipparcos Stars | journal=Monthly Notices of the Royal Astronomical Society | volume=427 | issue=1 | pages=343–57 | date=2012 | bibcode=2012MNRAS.427..343M | arxiv=1208.2037 | doi=10.1111/j.1365-2966.2012.21873.x | postscript=. }}
2. ^1 2 3 4 5 6 {{citation | display-authors=1 | last1=Tetzlaff | first1=N. | last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M. | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun | journal=Monthly Notices of the Royal Astronomical Society | volume=410 | issue=1 | pages=190–200 | date=January 2011 | doi=10.1111/j.1365-2966.2010.17434.x | bibcode=2011MNRAS.410..190T | postscript=. |arxiv = 1007.4883 }}
3. ^1 {{citation | last1=de Bruijne | first1=J. H. J. | last2=Eilers | first2=A.-C. | title=Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project | journal=Astronomy & Astrophysics | volume=546 | id=A61 | pages=14 | date=October 2012 | doi=10.1051/0004-6361/201219219 | bibcode=2012A&A...546A..61D | arxiv=1208.3048 | postscript=. }}
4. ^1 2 {{citation | last1=Abt | first1=Helmut A. | last2=Levato | first2=Hugo | last3=Grosso | first3=Monica | title=Rotational Velocities of B Stars | journal=The Astrophysical Journal | volume=573 | issue=1 | pages=359–365 | date=July 2002 | doi=10.1086/340590 | bibcode=2002ApJ...573..359A | postscript=. }}
5. ^1 2 3 4 {{citation | display-authors=1 | last1=Crawford | first1=D. L. | last2=Barnes | first2=J. V. | last3=Golson | first3=J. C. | title=Four-color, H-beta, and UBV photometry for bright B-type stars in the northern hemisphere | journal=The Astronomical Journal | year=1971 | pages=1058 | volume=76 | bibcode=1971AJ.....76.1058C | doi=10.1086/111220 | postscript=. }}
6. ^1 2 {{citation | title=SB9: The ninth catalogue of spectroscopic binary orbits | display-authors=1 | last1=Pourbaix | first1=D. | last2=Tokovinin | first2=A. A. | last3=Batten | first3=A. H. | last4=Fekel | first4=F. C. | last5=Hartkopf | first5=W. I. | last6=Levato | first6=H. | last7=Morrell | first7=N. I. | last8=Torres | first8=G. | last9=Udry | first9=S. | journal=Astronomy and Astrophysics | volume=424 | issue=2 | pages=727 | year=2004 | doi=10.1051/0004-6361:20041213 | arxiv=astro-ph/0406573 | bibcode=2004A&A...424..727P | postscript=. }}
7. ^1 {{cite simbad | title=ksi Ori | accessdate=2016-11-08 | postscript=. }}
}}{{Stars of Orion|state=collapsed}} 9 : B-type subgiants|Orion (constellation)|Bayer objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects|Durchmusterung objects|Spectroscopic binaries |