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Westerlund 2

open star cluster in the Carina constellation
Place open_cluster Q1331013
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Westerlund 2

Summary

Westerlund 2 is an open cluster[1]. It draws 25 Wikipedia views per month (open_cluster category, ranking #28 of 108).[2]

Key Facts

  • Westerlund 2 is credited with the discovery of Bengt Westerlund[3].
  • Westerlund 2's image is recorded as NASA Unveils Celestial Fireworks as Official Hubble 25th Anniversary Image.jpg[4].
  • Westerlund 2's instance of is recorded as open cluster[5].
  • Westerlund 2's instance of is recorded as super star cluster[6].
  • Westerlund 2's constellation is recorded as Carina[7].
  • Westerlund 2's part of is recorded as RCW 49[8].
  • Westerlund 2's Commons category is recorded as Westerlund 2[9].
  • Westerlund 2's catalog code is recorded as ESO 127-18[10].
  • Westerlund 2's catalog code is recorded as OCl 807[11].
  • Westerlund 2's catalog code is recorded as C 1022-575[12].
  • Westerlund 2's catalog code is recorded as [KPS2012] MWSC 1801[13].
  • Westerlund 2's catalog code is recorded as Cl VDBH 95[14].
  • Westerlund 2's catalog code is recorded as TeV J1023-575[15].
  • Westerlund 2's catalog code is recorded as [MBP2001] 82A[16].
  • Westerlund 2's Freebase ID is recorded as /m/0cxryg[17].
  • Westerlund 2's apparent magnitude is recorded as {'amount': '+11.59'}[18].
  • Westerlund 2's apparent magnitude is recorded as {'amount': '+10.5'}[19].
  • Westerlund 2's parallax is recorded as {'unit': 'Q21500224', 'amount': '+0.209'}[20].
  • Westerlund 2's distance from Earth is recorded as {'unit': 'Q12129', 'amount': '+4207'}[21].
  • Westerlund 2's distance from Earth is recorded as {'unit': 'Q531', 'amount': '+13722'}[22].
  • Westerlund 2's SIMBAD ID is recorded as Cl Westerlund 2[23].
  • Westerlund 2's right ascension is recorded as {'unit': 'Q28390', 'amount': '+10.3994722'}[24].
  • Westerlund 2's declination is recorded as {'unit': 'Q28390', 'amount': '-57.7636111'}[25].
  • Westerlund 2's epoch is recorded as J2000.0[26].
  • Westerlund 2's declination component of proper motion is recorded as {'unit': 'Q22137107', 'amount': '+2.895'}[27].

Body

Geography

Westerlund 2's part of is recorded as RCW 49[8].

Designation and Status

Recorded instance of include open cluster[5] and super star cluster[6].

History and Context

Catalog codes include ESO 127-18[10], OCl 807[11], C 1022-575[12], [KPS2012] MWSC 1801[13], Cl VDBH 95[14], and TeV J1023-575[15].

Why It Matters

Westerlund 2 draws 25 Wikipedia views per month (open_cluster category, ranking #28 of 108).[2] It has Wikipedia articles in 13 language editions, a strong signal of global cultural recognition.[28] It is known by 5 alternative names across languages and contexts.[29]

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [5] ↑ . SIMBAD. wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [7] ↑ . VizieR. wikidata.org.
  5. [3] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . The ESO/Uppsala Survey of the ESO(B) Atlas. wikidata.org.
  9. [11] ↑ . Catalogue of star clusters and associations + supplements. wikidata.org.
  10. [12] ↑ . IAU numbers for some recently discovered clusters. wikidata.org.
  11. [13] ↑ . Global survey of star clusters in the Milky Way. III. 139 new open clusters at high Galactic latitudes. wikidata.org.
  12. [14] ↑ . Uniform survey of clusters in the Southern Milky Way. wikidata.org.
  13. [15] ↑ . Extragalactic sources of TeV gamma rays : a summary. wikidata.org.
  14. [16] ↑ . A ROSAT medium-sensitivity Galactic plane survey at 180 < l < 280. wikidata.org.
  15. [17] ↑ . Freebase Data Dumps. wikidata.org.
  16. [18] ↑ . SIMBAD. wikidata.org.
  17. [19] ↑ . SIMBAD. wikidata.org.
  18. [20] ↑ . A Gaia DR2 view of the open cluster population in the Milky Way. wikidata.org.
  19. [21] ↑ . A Gaia DR2 view of the open cluster population in the Milky Way. wikidata.org.
  20. [22] ↑ . A Gaia DR2 view of the open cluster population in the Milky Way. wikidata.org.
  21. [23] ↑ . SIMBAD. wikidata.org.
  22. [24] ↑ . A ROSAT medium-sensitivity Galactic plane survey at 180 < l < 280. wikidata.org.
  23. [25] ↑ . A ROSAT medium-sensitivity Galactic plane survey at 180 < l < 280. wikidata.org.
  24. [26] ↑ . A ROSAT medium-sensitivity Galactic plane survey at 180 < l < 280. wikidata.org.
  25. [27] ↑ . A Gaia DR2 view of the open cluster population in the Milky Way. 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). Westerlund 2. Retrieved May 3, 2026, from https://4ort.xyz/entity/westerlund-2
MLA “Westerlund 2.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/westerlund-2.
BibTeX @misc{4ortxyz_westerlund-2_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Westerlund 2}}, year = {2026}, url = {https://4ort.xyz/entity/westerlund-2}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Westerlund 2 — https://4ort.xyz/entity/westerlund-2 (retrieved 2026-05-03)

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