Circinus X-1

binary star in the constellation Circinus
Thing high_mass_x_ray_binary Q1092768
Press Enter · cited answer in seconds

Circinus X-1

Summary

Circinus X-1 is a high-mass X-ray binary[1]. It draws 9 Wikipedia views per month (high_mass_x_ray_binary category, ranking #6 of 11).[2]

Key Facts

  • Circinus X-1's image is recorded as Circinus X-1.jpg[3].
  • Circinus X-1's instance of is recorded as high-mass X-ray binary[4].
  • Circinus X-1's constellation is recorded as Circinus[5].
  • Circinus X-1's spectral class is recorded as B5Ia[6].
  • Circinus X-1's Commons category is recorded as Circinus X-1[7].
  • Circinus X-1's has part is recorded as neutron star[8].
  • Circinus X-1's has part is recorded as blue supergiant[9].
  • Circinus X-1's catalog code is recorded as 2MASS J15204084-5710001[10].
  • Circinus X-1's catalog code is recorded as 1RXS J152040.8-571007[11].
  • Circinus X-1's catalog code is recorded as 1XRS 15168-569[12].
  • Circinus X-1's catalog code is recorded as 2U 1516-56[13].
  • Circinus X-1's catalog code is recorded as 3A 1516-569[14].
  • Circinus X-1's catalog code is recorded as 3U 1516-56[15].
  • Circinus X-1's catalog code is recorded as 4U 1516-569[16].
  • Circinus X-1's catalog code is recorded as 4U 1516-56[17].
  • Circinus X-1's catalog code is recorded as GPS 1517-570[18].
  • Circinus X-1's catalog code is recorded as INTREF 645[19].
  • Circinus X-1's catalog code is recorded as PBC J1520.6-5710[20].
  • Circinus X-1's catalog code is recorded as BR Cir[21].
  • Circinus X-1's Freebase ID is recorded as /m/05b01cb[22].
  • Circinus X-1's apparent magnitude is recorded as {'amount': '+21.4'}[23].
  • Circinus X-1's apparent magnitude is recorded as {'amount': '+21.4'}[24].
  • Circinus X-1's apparent magnitude is recorded as {'amount': '+12.743'}[25].
  • Circinus X-1's apparent magnitude is recorded as {'amount': '+11.521'}[26].
  • Circinus X-1's apparent magnitude is recorded as {'amount': '+10.692'}[27].

Why It Matters

Circinus X-1 draws 9 Wikipedia views per month (high_mass_x_ray_binary category, ranking #6 of 11).[2] It has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[28] It is known by 3 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] . wikidata.org.
  2. [4] . SIMBAD. wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . Origins of X-Ray Line Emissions in Circinus X-1 at Very Low X-Ray Flux. wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . Origins of X-Ray Line Emissions in Circinus X-1 at Very Low X-Ray Flux. wikidata.org.
  7. [9] . Origins of X-Ray Line Emissions in Circinus X-1 at Very Low X-Ray Flux. wikidata.org.
  8. [10] . SIMBAD. 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] . SIMBAD. wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . SIMBAD. wikidata.org.
  22. [24] . A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition). wikidata.org.
  23. [25] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  24. [26] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  25. [27] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). 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). Circinus X-1. Retrieved May 3, 2026, from https://4ort.xyz/entity/circinus-x-1
MLA “Circinus X-1.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/circinus-x-1.
BibTeX @misc{4ortxyz_circinus-x-1_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Circinus X-1}}, year = {2026}, url = {https://4ort.xyz/entity/circinus-x-1}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Circinus X-1 — https://4ort.xyz/entity/circinus-x-1 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/circinus-x-1 · Last refreshed: