Sigma Librae

Star in the constellation Libra
Place star Q15719
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Sigma Librae

Summary

Sigma Librae is a star[1]. It ranks in the top 5% of star entities by monthly Wikipedia readership (15 views/month).[2]

Key Facts

  • Sigma Librae's instance of is recorded as star[3].
  • Sigma Librae's instance of is recorded as Mira variable[4].
  • Sigma Librae's instance of is recorded as near-infrared source[5].
  • Sigma Librae's instance of is recorded as ultraviolet source[6].
  • Sigma Librae's instance of is recorded as semiregular variable star[7].
  • Sigma Librae's instance of is recorded as pulsating variable star[8].
  • Sigma Librae's constellation is recorded as Libra[9].
  • Sigma Librae's spectral class is recorded as M2.5III[10].
  • Sigma Librae's catalog code is recorded as SAO 183139[11].
  • Sigma Librae's catalog code is recorded as 2MASS J15040422-2516549[12].
  • Sigma Librae's catalog code is recorded as GSC 06752-01455[13].
  • Sigma Librae's catalog code is recorded as HD 133216[14].
  • Sigma Librae's catalog code is recorded as HIP 73714[15].
  • Sigma Librae's catalog code is recorded as HR 5603[16].
  • Sigma Librae's catalog code is recorded as IRAS 15011-2505[17].
  • Sigma Librae's catalog code is recorded as GJ 9508[18].
  • Sigma Librae's catalog code is recorded as GJ 574.1[19].
  • Sigma Librae's catalog code is recorded as σ Lib[20].
  • Sigma Librae's catalog code is recorded as PLX 3400[21].
  • Sigma Librae's catalog code is recorded as CSV 7165[22].
  • Sigma Librae's catalog code is recorded as FK5 556[23].
  • Sigma Librae's catalog code is recorded as GC 20253[24].
  • Sigma Librae's catalog code is recorded as GCRV 8717[25].
  • Sigma Librae's catalog code is recorded as HIC 73714[26].
  • Sigma Librae's catalog code is recorded as IRC -30228[27].

Body

Designation and Status

Recorded instance of include star[3], Mira variable[4], near-infrared source[5], ultraviolet source[6], semiregular variable star[7], and pulsating variable star[8].

History and Context

Catalog codes include SAO 183139[11], 2MASS J15040422-2516549[12], GSC 06752-01455[13], HD 133216[14], HIP 73714[15], and HR 5603[16].

Why It Matters

Sigma Librae ranks in the top 5% of star entities by monthly Wikipedia readership (15 views/month).[2] It has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[28] It is known by 44 alternative names across languages and contexts.[29]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . SIMBAD. wikidata.org.
  2. [4] . SIMBAD. wikidata.org.
  3. [5] . SIMBAD. wikidata.org.
  4. [6] . SIMBAD. wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . The Perkins catalog of revised MK types for the cooler stars. wikidata.org.
  9. [11] . SIMBAD. wikidata.org.
  10. [12] . SIMBAD. wikidata.org.
  11. [13] . SIMBAD. wikidata.org.
  12. [14] . SIMBAD. wikidata.org.
  13. [15] . SIMBAD. wikidata.org.
  14. [16] . SIMBAD. wikidata.org.
  15. [17] . SIMBAD. wikidata.org.
  16. [18] . SIMBAD. wikidata.org.
  17. [19] . SIMBAD. wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . SIMBAD. wikidata.org.
  20. [22] . SIMBAD. wikidata.org.
  21. [23] . SIMBAD. wikidata.org.
  22. [24] . SIMBAD. wikidata.org.
  23. [25] . SIMBAD. wikidata.org.
  24. [26] . SIMBAD. wikidata.org.
  25. [27] . SIMBAD. wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. wikidata.org.
  3. [29] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Sigma Librae. Retrieved May 3, 2026, from https://4ort.xyz/entity/sigma-librae
MLA “Sigma Librae.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/sigma-librae.
BibTeX @misc{4ortxyz_sigma-librae_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Sigma Librae}}, year = {2026}, url = {https://4ort.xyz/entity/sigma-librae}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Sigma Librae — https://4ort.xyz/entity/sigma-librae (retrieved 2026-05-03)

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