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Robert's Quartet

compact galaxy group in the constellation Phoenix
Thing galaxy_group Q1329513
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Robert's Quartet

Summary

Robert's Quartet is a galaxy group[1]. It has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • Robert's Quartet is credited with the discovery of John Frederick William Herschel[3].
  • Robert's Quartet's instance of is recorded as galaxy group[4].
  • Robert's Quartet's instance of is recorded as compact group of galaxies[5].
  • Robert's Quartet's instance of is recorded as tetrad[6].
  • Robert's Quartet's constellation is recorded as Phoenix[7].
  • Robert's Quartet's catalog code is recorded as AM 0018-485[8].
  • Robert's Quartet's catalog code is recorded as [R77] 34[9].
  • Robert's Quartet's topic's main category is recorded as Category:Robert's Quartet[10].
  • Robert's Quartet's apparent magnitude is recorded as {'amount': '+13.91'}[11].
  • Robert's Quartet's radial velocity is recorded as {'unit': 'Q3674704', 'amount': '+3361'}[12].
  • Robert's Quartet's right ascension is recorded as {'unit': 'Q28390', 'amount': '+5.34583'}[13].
  • Robert's Quartet's declination is recorded as {'unit': 'Q28390', 'amount': '-48.63889'}[14].
  • Robert's Quartet's epoch is recorded as J2000.0[15].

Body

Definition and Type

Recorded instance of include galaxy group[4], compact group of galaxies[5], and tetrad[6].

Why It Matters

Robert's Quartet has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[2] It is known by 4 alternative names across languages and contexts.[16]

Related Entities

John Frederick William Herschel

References

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

Direct Wikidata claims

  1. [4] ↑ . SIMBAD. wikidata.org.
  2. [5] ↑ . SIMBAD. wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [7] ↑ . wikidata.org.
  5. [3] ↑ . wikidata.org.
  6. [8] ↑ . SIMBAD. wikidata.org.
  7. [9] ↑ . SIMBAD. wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . SIMBAD. wikidata.org.
  10. [12] ↑ . Star formation activity and nuclear activity in compact groups of galaxies. wikidata.org.
  11. [13] ↑ . Detecting fainter compact groups: results from a new automated algorithm. wikidata.org.
  12. [14] ↑ . Detecting fainter compact groups: results from a new automated algorithm. wikidata.org.
  13. [15] ↑ . Detecting fainter compact groups: results from a new automated algorithm. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [16] ↑ . 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). Robert's Quartet. Retrieved May 3, 2026, from https://4ort.xyz/entity/robert-s-quartet
MLA “Robert's Quartet.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/robert-s-quartet.
BibTeX @misc{4ortxyz_robert-s-quartet_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Robert's Quartet}}, year = {2026}, url = {https://4ort.xyz/entity/robert-s-quartet}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Robert's Quartet — https://4ort.xyz/entity/robert-s-quartet (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/robert-s-quartet · 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. 18d ago · Huntster · 2026-07-01 view diff on Wikidata ↗
    Instance of → galaxy group, compact group of galaxies, tetrad
    Topic's main category → Category:Robert's Quartet
    Instance of → —
    Aliases → —
    + 7 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P31]]: [[Q318]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.