Hoag's Object

non-typical galaxy of the type known as a ring galaxy
Thing ring_galaxy Q872197
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Hoag's Object

Summary

Hoag's Object is a ring galaxy[1]. It has Wikipedia articles in 21 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • Hoag's Object is credited with the discovery of Arthur Hoag[3].
  • Hoag's Object's instance of is recorded as ring galaxy[4].
  • Hoag's Object's instance of is recorded as astronomical object[5].
  • Hoag's Object's instance of is recorded as Hoag-type galaxy[6].
  • Hoag's Object's constellation is recorded as Serpens[7].
  • Arthur Hoag is named after Hoag's Object[8].
  • Hoag's Object's galaxy morphological type is recorded as 3D[9].
  • Hoag's Object's galaxy morphological type is recorded as 3[10].
  • Hoag's Object's Commons category is recorded as Hoag's Object[11].
  • Hoag's Object's catalog code is recorded as 2MASS J15171440+2135078[12].
  • Hoag's Object's catalog code is recorded as AGC 250437[13].
  • Hoag's Object's catalog code is recorded as LEDA 54559[14].
  • Hoag's Object's catalog code is recorded as SDSS J151714.40+213507.8[15].
  • Hoag's Object's catalog code is recorded as Anon 1515+2146[16].
  • Hoag's Object's catalog code is recorded as Gaia DR2 1214955817502973568[17].
  • Hoag's Object's time of discovery or invention is recorded as January 1, 1950[18].
  • Hoag's Object's redshift is recorded as {'amount': '+0.04244'}[19].
  • Hoag's Object's apparent magnitude is recorded as {'amount': '+17.7572'}[20].
  • Hoag's Object's apparent magnitude is recorded as {'amount': '+14.230'}[21].
  • Hoag's Object's apparent magnitude is recorded as {'amount': '+13.536'}[22].
  • Hoag's Object's apparent magnitude is recorded as {'amount': '+13.230'}[23].
  • Hoag's Object's apparent magnitude is recorded as {'amount': '+15.8'}[24].
  • Hoag's Object's apparent magnitude is recorded as {'amount': '+15.1'}[25].
  • Hoag's Object's apparent magnitude is recorded as {'amount': '+18.43'}[26].
  • Hoag's Object's apparent magnitude is recorded as {'amount': '+16.407'}[27].

Body

Definition and Type

Recorded instance of include ring galaxy[4], astronomical object[5], and Hoag-type galaxy[6].

Origins

Arthur Hoag is named after Hoag's Object[8].

Why It Matters

Hoag's Object has Wikipedia articles in 21 language editions, a strong signal of global cultural recognition.[2] It is known by 5 alternative names across languages and contexts.[28]

References

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

Direct Wikidata claims

  1. [4] . wikidata.org.
  2. [5] . 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] . A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies. wikidata.org.
  9. [11] . 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] . wikidata.org.
  17. [19] . The SDSS Photometric Catalog, Release 7. wikidata.org.
  18. [20] . Gaia Data Release 2. wikidata.org.
  19. [21] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  20. [22] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  21. [23] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  22. [24] . SIMBAD. wikidata.org.
  23. [25] . SIMBAD. wikidata.org.
  24. [26] . The SDSS Photometric Catalog, Release 7. wikidata.org.
  25. [27] . The SDSS Photometric Catalog, Release 7. wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikidata sitelinks. wikidata.org.
  2. [28] . 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). Hoag's Object. Retrieved May 3, 2026, from https://4ort.xyz/entity/hoag-s-object
MLA “Hoag's Object.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hoag-s-object.
BibTeX @misc{4ortxyz_hoag-s-object_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Hoag's Object}}, year = {2026}, url = {https://4ort.xyz/entity/hoag-s-object}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Hoag's Object — https://4ort.xyz/entity/hoag-s-object (retrieved 2026-05-03)

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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. 8d ago · Sanjeev bot bot · 2026-07-10 view diff on Wikidata ↗
    Aliases
    Radius {'unit': 'Q531', 'amount': '+50000'}
    Constellation Serpens
    Apparent magnitude {'amount': '+17.7572'}, {'amount': '+14.230'}, {'amount': '+13.536'} +8
    + 12 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Bot: +hiwiki sitelink"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.