{{Short description|Several conflated star systems in the constellation Libra}} {{Location mark |type=thumb |image=Libra IAU.svg|alt=|float=right|width=260 |label=|position=right |mark=Red circle.svg|mark_width=15|mark_link=ζ Lib |x=456|y=456 |caption=Location of the ζ Librae pair (circled) }} The [[Bayer designation]] '''ζ Librae''', Latinised as '''Zeta Librae''' (abbreviated ζ Lib / Zeta Lib) is shared by several [[star system]]s in the [[constellation]] [[Libra (constellation)|Libra]]. Sources differ about the [[Flamsteed designation|Flamsteed]] and Bayer designations that should be applied to four stars:<ref name=xref>{{cite journal|bibcode=2004yCat.4027....0K|title=VizieR Online Data Catalog: HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index (Kostjuk, 2002)|journal=VizieR On-line Data Catalog: IV/27A. Originally Published in: Institute of Astronomy of Russian Academy of Sciences (2002)|volume=4027|last1=Kostjuk|first1=N. D.|year=2004}}</ref><ref name=hr>{{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>
*[[Zeta1 Librae|ζ<sup>1</sup> Librae]] (HR 5743), known as HD 137744 and 32 Librae *[[Zeta2 Librae|ζ<sup>2</sup> Librae]] (GZ Librae), sometimes known as 33 Librae, or as HD 137949 *[[Zeta3 Librae|ζ<sup>3</sup> Librae]] (HR 5750), known as HD 138137 and 34 Librae *[[Zeta4 Librae|ζ<sup>4</sup> Librae]] (HR 5764), known as HD 138485 and 35 Librae, often simply called ζ Librae
In light of the obvious confusion, the [[Bright Star Catalogue]] recommends the use of HR designations to unambiguously identify these four stars. ζ<sup>2</sup> Librae does not have an HR number although it is included in the Bright Star Catalogue Supplement.<ref name=hr/><ref name=supplement>{{cite journal|bibcode=1982bsc..book.....H|title=The Bright Star Catalogue. Fourth revised edition. (Containing data compiled through 1979)|journal=The Bright Star Catalogue. Fourth Revised Edition. (Containing Data Compiled Through 1979)|last1=Hoffleit|first1=D.|last2=Jaschek|first2=C.|year=1982}}</ref>
==References== {{reflist}}
{{Set index article |astronomical objects}} {{Stars of Libra|state=expanded}}
{{DEFAULTSORT:Zeta Librae}} [[Category:Bayer objects|Librae, zeta]] [[Category:Libra (constellation)]]