What is 15 Orionis?
{{Starbox begin | name = 15 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=15 Orionis |x=756|y=83 }} |caption=Location of 15 Orionis (circled) }} {{Starbox observe | epoch = J2000 | constell = [[Orion (constellation)|Orion]] | ra = {{RA|05|09|41.95770}}<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%2024010 Vizier catalog entry]</ref> | dec = {{DEC|15|35|50.0410}}<ref name=vanLeeuwen2007/> | appmag_v = 4.82<ref name=Ducati2002>{{cite journal |bibcode=2002yCat.2237....0D |title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system |journal=CDS/ADC Collection of Electronic Catalogues |volume=2237 |last1=Ducati |first1=J. R. |year=2002 }}</ref> }} {{Starbox character | class = F2IV<ref name=Hoffleit1991>{{cite journal | bibcode=1995yCat.5050....0H | title=VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) | journal=VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H | volume=5050 | last1=Hoffleit | first1=D. | last2=Warren | first2=W. H. | year=1995 }}</ref> | b-v = +0.32<ref name=Ducati2002/> | u-b = +0.19<ref name=Ducati2002/> }} {{Starbox astrometry | radial_v = +28.79<ref name=Massarotti2008>{{cite journal | bibcode=2008AJ....135..209M | doi=10.1088/0004-6256/135/1/209 | title=Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity | url=https://archive.org/details/sim_astronomical-journal_2008-01_135_1/page/209 | journal=The Astronomical Journal | volume=135 | pages=209–231 | year=2008 | last1=Massarotti | first1=Alessandro | last2=Latham