# 16 Lyncis

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> Markdown URL: https://mediated.wiki/source/16_Lyncis.md
> Source: https://en.wikipedia.org/wiki/16_Lyncis
> Source revision: 1328742846
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Short description|Star in the constellation Lynx}}
{{other stars by Bayer designation|Psi Aurigae{{!}}ψ Aurigae}}
{{Starbox begin}}
{{Starbox image
 | image =
{{Location mark
|image=Lynx constellation map.svg|alt=|float=center|width=240
|label=|position=right
|mark=Red circle.svg|mark_width=10|mark_link=16 Lyncis
|x=858|y=510
}}
 | caption     = Location of 16 Lyncis (circled)
}}
{{Starbox observe
 | epoch       = J2000
 | constell    = [Lynx](/source/Lynx_(constellation))<ref name=Anderson2012/>
 | ra          = {{RA|06|57|37.10709}}<ref name="van Leeuwen 2007"/>
 | dec         = {{DEC|+45|05|38.7404}}<ref name="van Leeuwen 2007"/>
 | appmag_v    = 4.90<ref name=hr/>
}}
{{Starbox character
 | type        =  
 | class       = A0Vn<ref name=abt/>
 | b-v         = 0.03<ref name=hr/>
 | variable    = suspected<ref name=gulliver/>
}}
{{Starbox astrometry
 | radial_v    = {{Val|−11.90|1}}<ref name="Gontcharov 2006"/>
 | prop_mo_ra  = {{Val|−21.52|0.27}}<ref name="van Leeuwen 2007"/>
 | prop_mo_dec = {{Val|−3.12|0.17}}<ref name="van Leeuwen 2007"/>
 | parallax    = 13.54
 | p_error     = 0.23
 | parallax_footnote = <ref name="van Leeuwen 2007"/>
 | absmag_v    = 0.56<ref name=Anderson2012/>
}}
{{Starbox detail
 | source      = <ref name=David2015/>
 | mass        = 2.38
 | radius      = 
 | luminosity  = 56<ref name=Anderson2012/>
 | temperature = {{Val|10395|353|fmt=commas}}
 | metal_fe    = 
 | gravity     = 4.02
 | rotational_velocity = 229
 | age_myr     = 181
}}
{{Starbox catalog
 | names       = {{odlist | B=Psi<sup>10</sup>&nbsp;Aurigae | F=16&nbsp;Lyn | BD=+45°1367 | FK5= | GJ= | HD=50973 | HIP=33485 | HR=2585 | SAO=41463 }}<ref name=SIMBAD/>
}}
{{Starbox reference
 | Simbad = HD+50973
 | ARICNS = 
}}
{{Starbox end}}

'''16 Lyncis''' is a [star](/source/star) in the [constellation](/source/constellation) [Lynx](/source/Lynx_(constellation)). It is positioned next to the western constellation border with [Auriga](/source/Auriga_(constellation)), and is also known as '''Psi<sup>10</sup> Aurigae''', which is [Latinized](/source/Romanization_of_Greek) from ψ<sup>10</sup> Aurigae. The star has a white hue and is visible to the naked eye with an [apparent visual magnitude](/source/apparent_visual_magnitude) of 4.90.<ref name=hr/> The distance to this object is approximately 241<ref name="van Leeuwen 2007"/>&nbsp;[light-year](/source/light-year)s based on [parallax](/source/stellar_parallax), but it is drifting closer to the [Sun](/source/Sun) with a [radial velocity](/source/radial_velocity) of −12&nbsp;km/s.<ref name="Gontcharov 2006"/> It has an [absolute magnitude](/source/absolute_magnitude) of 0.56.<ref name=Anderson2012/>

This object is a solitary<ref name=Eggleton2008/> [A-type main-sequence star](/source/A-type_main-sequence_star) with a [stellar classification](/source/stellar_classification) of A0Vn,<ref name=abt/> a star that is currently fusing its core [hydrogen](/source/hydrogen). The 'n' suffix indicates "nebulous" [absorption line](/source/absorption_line)s due to rapid rotation. It is around 181&nbsp;million years old with a [projected rotational velocity](/source/projected_rotational_velocity) of 229&nbsp;km/s.<ref name=David2015/> This spin rate is giving the star an [oblate shape](/source/oblate_shape) with an [equatorial bulge](/source/equatorial_bulge) that is an estimated 10% larger than the polar radius.<ref name=belle2012/> 16 Lyncis has 2.38<ref name=David2015/> times the [mass of the Sun](/source/mass_of_the_Sun) and is radiating 56<ref name=Anderson2012/> times the [Sun's luminosity](/source/Sun's_luminosity) from its [photosphere](/source/photosphere) at an [effective temperature](/source/effective_temperature) of {{val|10395|fmt=commas|ul=K}}.<ref name=David2015/>

16 Lyncis is suspected of being slightly [variable](/source/Variable_star), but this has not been confirmed.<ref name="AAVSO"/> It was noted when 16 Lyncis was used as a comparison star for observing another variable, the peculiar [HD 51418](/source/HD_51418) (NY Aurigae).<ref name=gulliver/>

==See also==
* [Psi Aurigae](/source/Psi_Aurigae)

==References==
<references>

<ref name=SIMBAD>{{cite simbad
 | title=psi10 Aur | accessdate=2020-07-01}}</ref>

<ref name=Eggleton2008>{{cite journal
 | title=A catalogue of multiplicity among bright stellar systems
 | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A.
 | journal=Monthly Notices of the Royal Astronomical Society
 | volume=389 | issue=2 | pages=869 | date=2008
 | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | arxiv=0806.2878
 | bibcode=2008MNRAS.389..869E | s2cid=14878976 }}</ref>

<ref name=belle2012>{{cite journal
 | title=Interferometric observations of rapidly rotating stars
 | last1=Belle | first1=G. T.
 | journal=The Astronomy and Astrophysics Review
 | volume=20| page=51 | year=2012
 | issue=1 | bibcode=2012A&ARv..20...51V | arxiv=1204.2572
 | doi=10.1007/s00159-012-0051-2 | s2cid=119273474 }}</ref>

<ref name=hr>{{cite journal
 | title=Bright Star Catalogue | edition=5th
 | journal=VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H 
 | last1=Hoffleit | first1=D. | last2=Warren | first2=W. H.
 | year=1995 | volume=5050 | bibcode=1995yCat.5050....0H }}</ref>

<ref name="AAVSO">{{cite web
 | title=NSV 3293 | author=VSX
 | date=18 January 2010 | work=AAVSO Website
 | publisher=[American Association of Variable Star Observers](/source/American_Association_of_Variable_Star_Observers)
 | url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=41917
 | accessdate=11 October 2014 }}</ref>

<ref name=gulliver>{{cite journal
 | last1=Gulliver | first1=A. F. | last2=Winzer | first2=J. E.
 | title=Spectrum and light variations of the peculiar a star HD 51418
 | journal=The Astrophysical Journal
 | volume=183 | pages=701 | year=1973
 | bibcode=1973ApJ...183..701G | doi=10.1086/152260 }}</ref>

<ref name=Anderson2012>{{cite XHIP|33485}}</ref>

<ref name=David2015>{{cite journal
 | last1=David | first1=Trevor J. | last2=Hillenbrand | first2=Lynne A.
 | 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
 | bibcode=2015ApJ...804..146D | doi=10.1088/0004-637X/804/2/146
 | arxiv=1501.03154 | s2cid=33401607 }}</ref>

<ref name="van Leeuwen 2007">{{Cite journal
 | last1=Van Leeuwen | first1=F.
 | title=Validation of the new Hipparcos reduction
 | journal=Astronomy and Astrophysics
 | volume=474 | issue=2 | pages=653–664 | year=2007
 | arxiv=0708.1752 | bibcode=2007A&A...474..653V
 | doi=10.1051/0004-6361:20078357 | s2cid=18759600
 }}</ref>

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

<ref name="Gontcharov 2006">{{Cite journal
 | 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
 | bibcode=2006AstL...32..759G | arxiv=1606.08053
 | doi=10.1134/S1063773706110065 | s2cid=119231169
 }}</ref>

</references>

{{Stars of Lynx}}

{{DEFAULTSORT:16 Lyncis}}
Category:A-type main-sequence stars
Category:Suspected variables
Category:Lynx (constellation)
Aurigae, Psi10
Category:Durchmusterung objects
Lyncis, 16
050973
033485
2585

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Adapted from the Wikipedia article [16 Lyncis](https://en.wikipedia.org/wiki/16_Lyncis) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/16_Lyncis?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.