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Holmberg 15A

elliptical galaxy
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Holmberg 15A

Summary

Holmberg 15A is a type-cD galaxy[1]. It draws 131 Wikipedia views per month (type_cd_galaxy category, ranking #2 of 3).[2]

Key Facts

  • Holmberg 15A is credited with the discovery of Erik Holmberg[3].
  • Holmberg 15A's instance of is recorded as type-cD galaxy[4].
  • Holmberg 15A's instance of is recorded as astronomical radio source[5].
  • Holmberg 15A's instance of is recorded as astrophysical X-ray source[6].
  • Holmberg 15A's constellation is recorded as Cetus[7].
  • Holmberg 15A's galaxy morphological type is recorded as -4[8].
  • Holmberg 15A is part of Q9138192[9].
  • Holmberg 15A is part of Q67796246[10].
  • Holmberg 15A is part of [YSS2008] 22[11].
  • Holmberg 15A's catalog code is recorded as 6dFGS gJ004150.5-091811[12].
  • Holmberg 15A's catalog code is recorded as FIRST J004150.4-091811[13].
  • Holmberg 15A's catalog code is recorded as GSC 05269-00531[14].
  • Holmberg 15A's catalog code is recorded as LEDA 2501[15].
  • Holmberg 15A's catalog code is recorded as 2MASX J00415052-0918109[16].
  • Holmberg 15A's catalog code is recorded as NVSS J004150-091813[17].
  • Holmberg 15A's catalog code is recorded as SDSS J004150.47-091811.2[18].
  • Holmberg 15A's catalog code is recorded as SDSS J004150.47-091811.3[19].
  • Holmberg 15A's catalog code is recorded as SDSS J004150.45-091811.4[20].
  • Holmberg 15A's catalog code is recorded as SDSS J004150.56-091809.8[21].
  • Holmberg 15A's catalog code is recorded as MCG-02-02-086[22].
  • Holmberg 15A's catalog code is recorded as Slee ACO 85 35[23].
  • Holmberg 15A's catalog code is recorded as [DFL98] 242[24].
  • Holmberg 15A's catalog code is recorded as [LO95] 0039-095B[25].
  • Holmberg 15A's catalog code is recorded as [SDG98] 1-1962[26].
  • Holmberg 15A's catalog code is recorded as [SDG98] 2-466[27].

Body

Definition and Type

Recorded instance of include type-cD galaxy[4], astronomical radio source[5], and astrophysical X-ray source[6].

Use and Application

Part of include Q9138192[9], a galaxy cluster[28]; Q67796246[10]; and [YSS2008] 22[11].

Why It Matters

Holmberg 15A draws 131 Wikipedia views per month (type_cd_galaxy category, ranking #2 of 3).[2] It has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[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] ↑ . SIMBAD. wikidata.org.
  4. [7] ↑ . wikidata.org.
  5. [3] ↑ . wikidata.org.
  6. [8] ↑ . The EFIGI catalogue of 4458 nearby galaxies with detailed morphology. wikidata.org.
  7. [9] ↑ . SIMBAD. 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] ↑ . 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.

Inline context (facts about related entities)

  1. [28] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [29] ↑ . Wikidata sitelinks. 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). Holmberg 15A. Retrieved October 5, 2026, from https://4ort.xyz/entity/holmberg-15a
MLA “Holmberg 15A.” 4ort.xyz Knowledge Graph, 4ort.xyz, 5 Oct. 2026, https://4ort.xyz/entity/holmberg-15a.
BibTeX @misc{4ortxyz_holmberg-15a_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Holmberg 15A}}, year = {2026}, url = {https://4ort.xyz/entity/holmberg-15a}, note = {Accessed: 2026-10-05}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Holmberg 15A — https://4ort.xyz/entity/holmberg-15a (retrieved 2026-10-05)

Canonical URL: https://4ort.xyz/entity/holmberg-15a · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 3d ago · MatSuBot bot · 2026-10-04 view diff on Wikidata ↗
    Sitelink count → 9
    Wikipedia languages → ['en', 'es', 'fa', 'fr', 'id', 'ko', 'pt', 'ru', 'vi']
    Claims rich → —
    "/* wbeditentity-update-languages-short:0||vi, ko, id */ import labels from sitelinks"
  2. 11w ago · Dirac · 2026-07-20 view diff on Wikidata ↗
    Constellation → Cetus
    Apparent magnitude → {'amount': '+12.94'}, {'amount': '+11.193'}, {'amount': '+10.431'} +8
    Epoch → J2000.0
    Redshift → {'amount': '+0.055672'}, {'amount': '+0.05536'}, {'amount': '+0.05533'} +4
    + 11 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P18]]: Holmberg 15A chandra.jpg, [[:toollabs:quickstatements/#/batch/261337|batch #261337]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.