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Robert's Quartet

compact galaxy group in the constellation Phoenix
Thing Compact Group of Galaxies Q1329513

Facts

11 properties
Instance of
compact group of galaxies, tetrad[2]
Apparent magnitude
13.91[11]
Catalog code
AM 0018-485, [R77] 34[8][9]
Constellation
Phoenix[3]
Declination
-48.63889°[14]
Discoverer or inventor
John Frederick William Herschel[1]
Epoch
J2000.0[15]
Has part(s)
NGC 87, NGC 88, NGC 89, NGC 92[4][5][6][7]
Radial velocity
3,361 km/s[12]
Right ascension
5.34583°[13]
Time of discovery or invention
September 30, 1834[10]
🏷️ Also known as
en Robert's Quartet en SCG2 0018-4854 en Rose 34 en AM 0018-485 en Phoenix Group ar رباعية روبرت de Roberts Quartett el Κουαρτέτο του Ρόμπερτ fa چهارقلوی رابرت fi Robertin kvartetti fr Quartette de Robert it Quartetto di Robert ja ロバートの四つ子銀河 ko 로버트의 네 은하 ko 로버트의 네 개의 은하 ko 로버트의 4중 은하 ko AM 0018-0485 ko AM0018-0485 nl Kwartet van Robert pl Kwartet Roberta
🔖 Identifiers · 5
Image (Wikimedia Commons)
Phot-34a-05-fullres.jpg ↗
Freebase ID
/m/0541_l
KBpedia ID
RobertsQuartet
SIMBAD ID
SCG2 0018-4854
Topic's main category
Category:Robert's Quartet

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🔗 Connections
Constellation 1
Phoenix
Discoverer or inventor 1
John Frederick William Herschel
Epoch 1
J2000.0
Instance of 1
galaxy group
Topic's main category 1
Category:Robert's Quartet
← Category's main topic 1
Category:Robert's Quartet
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Related Entities

John Frederick William Herschel

References

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

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [1] ↑ . Results of Astronomical Observations made during the years 1834-8 at the Cape of Good Hope. wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . wikidata.org.
  6. [6] ↑ . wikidata.org.
  7. [7] ↑ . wikidata.org.
  8. [8] ↑ . SIMBAD. wikidata.org.
  9. [9] ↑ . SIMBAD. wikidata.org.
  10. [10] ↑ . Results of Astronomical Observations made during the years 1834-8 at the Cape of Good Hope. wikidata.org.
  11. [11] ↑ . SIMBAD. wikidata.org.
  12. [12] ↑ . Star formation activity and nuclear activity in compact groups of galaxies. wikidata.org.
  13. [13] ↑ . Detecting fainter compact groups: results from a new automated algorithm. wikidata.org.
  14. [14] ↑ . Detecting fainter compact groups: results from a new automated algorithm. wikidata.org.
  15. [15] ↑ . Detecting fainter compact groups: results from a new automated algorithm. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Robert's Quartet. Retrieved November 14, 2026, from https://4ort.xyz/entity/robert-s-quartet
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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: 2026-11-14}}
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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. 19w ago · Huntster · 2026-07-01 view diff on Wikidata ↗
    Instance of → compact group of galaxies, tetrad
    Topic's main category → Category:Robert's Quartet
    Apparent magnitude → 13.91
    Constellation → Phoenix
    + 5 other properties edited (see Wikidata diff for full list)
    "Removed claim: Instance of: galaxy"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.