# Zeta Librae

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Several conflated star systems in the constellation Libra

Location of the ζ Librae pair (circled)

The [Bayer designation](/source/Bayer_designation) **ζ Librae**, Latinised as **Zeta Librae** (abbreviated ζ Lib / Zeta Lib) is shared by several [star systems](/source/Star_system) in the [constellation](/source/Constellation) [Libra](/source/Libra_(constellation)). Sources differ about the [Flamsteed](/source/Flamsteed_designation) and Bayer designations that should be applied to four stars:[1][2]

- [ζ1 Librae](https://en.wikipedia.org/w/index.php?title=Zeta1_Librae&action=edit&redlink=1) (HR 5743), known as HD 137744 and 32 Librae

- [ζ2 Librae](/source/Zeta2_Librae) (GZ Librae), sometimes known as 33 Librae, or as HD 137949

- [ζ3 Librae](https://en.wikipedia.org/w/index.php?title=Zeta3_Librae&action=edit&redlink=1) (HR 5750), known as HD 138137 and 34 Librae

- [ζ4 Librae](https://en.wikipedia.org/w/index.php?title=Zeta4_Librae&action=edit&redlink=1) (HR 5764), known as HD 138485 and 35 Librae, often simply called ζ Librae

In light of the obvious confusion, the [Bright Star Catalogue](/source/Bright_Star_Catalogue) recommends the use of HR designations to unambiguously identify these four stars. ζ2 Librae does not have an HR number although it is included in the Bright Star Catalogue Supplement.[2][3]

## References

1. **[^](#cite_ref-xref_1-0)** Kostjuk, N. D. (2004). "VizieR Online Data Catalog: HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index (Kostjuk, 2002)". *VizieR On-line Data Catalog: IV/27A. Originally Published in: Institute of Astronomy of Russian Academy of Sciences (2002)*. **4027**. [Bibcode](/source/Bibcode_(identifier)):[2004yCat.4027....0K](https://ui.adsabs.harvard.edu/abs/2004yCat.4027....0K).

1. ^ [***a***](#cite_ref-hr_2-0) [***b***](#cite_ref-hr_2-1) Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". *VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H*. **5050**. [Bibcode](/source/Bibcode_(identifier)):[1995yCat.5050....0H](https://ui.adsabs.harvard.edu/abs/1995yCat.5050....0H).

1. **[^](#cite_ref-supplement_3-0)** Hoffleit, D.; Jaschek, C. (1982). "The Bright Star Catalogue. Fourth revised edition. (Containing data compiled through 1979)". *The Bright Star Catalogue. Fourth Revised Edition. (Containing Data Compiled Through 1979)*. [Bibcode](/source/Bibcode_(identifier)):[1982bsc..book.....H](https://ui.adsabs.harvard.edu/abs/1982bsc..book.....H).

Index of articles associated with the same name

This [set index article](https://en.wikipedia.org/wiki/Wikipedia:Set_index_articles) includes a list of related items that share the same name (or similar names).
 If an [internal link](https://en.wikipedia.org/w/index.php?title=Special:Whatlinkshere/Zeta_Librae&namespace=0) incorrectly led you here, you may wish to change the link to point directly to the intended article.

v t e Constellation of Libra List of stars in Libra Libra in Chinese astronomy Stars Bayer α1 α2 (Zubenelgenubi) β (Zubeneschamali) γ (Zubenelhakrabi) δ ε ζ1 ζ2 ζ3 ζ4 η θ ι1 ι2 κ λ μ ν ξ1 ξ2 ο σ (Brachium) τ υ Flamsteed 2 3 4 5 10 11 12 16 17 18 22 23 26 28 30 36 37 41 42 47 48 49 50 Variable HN HO KU KX HR 5504 5455 HD 133131 134439 134440 135485 137010 139139 140283 141569 141937 Other 2M1510 2MASS 1507−1627 CWISEP J1446−2317 HE 1523−0901 WASP-57 WISE 1534−1043 WISE 1541−2250 Exoplanets 23 Librae b c Gliese 581b c e HD 137010 b (unconfirmed) K2-315b WASP-189b Star clusters NGC 5897 Galaxies NGC 5597 5605 5716 5728 5792 5793 5861 5885 5890 5898 5915 5917 Other AP Librae IC 1059 IRAS 14348−1447 PKS 1510−089 PKS 1519−273 QSO B1524−136 RXC J1504.1−0248 BCG Category

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