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NGC 6639

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Thing galaxy Q1146837
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NGC 6639

Summary

NGC 6639 is a galaxy[1]. NGC 6639 has Wikipedia articles in 25 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • NGC 6639 is credited with the discovery of John Frederick William Herschel[3].
  • NGC 6639's image is recorded as NGC 6639 PanS.jpg[4].
  • NGC 6639's instance of is recorded as galaxy[5].
  • NGC 6639's constellation is recorded as Scutum[6].
  • NGC 6639's catalog code is recorded as NGC 6639[7].
  • NGC 6639's catalog code is recorded as [KPS2012] MWSC 2934[8].
  • NGC 6639's time of discovery or invention is recorded as +1826-07-31T00:00:00Z[9].
  • NGC 6639's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+7.0'}[10].
  • NGC 6639's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+700'}[11].
  • NGC 6639's Google Knowledge Graph ID is recorded as /g/121bq7p3[12].
  • NGC 6639's SIMBAD ID is recorded as NGC 6639[13].
  • NGC 6639's New General Catalogue ID is recorded as 6639[14].
  • NGC 6639's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+277.7458'}[15].
  • NGC 6639's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-13.1550'}[16].
  • NGC 6639's epoch is recorded as J2000.0[17].
  • NGC 6639's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-2.87'}[18].
  • NGC 6639's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-0.36'}[19].

Body

Works and Contributions

NGC 6639 is credited with the discovery of John Frederick William Herschel[3].

Why It Matters

NGC 6639 has Wikipedia articles in 25 language editions, a strong signal of global cultural recognition.[2]

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. [3] ↑ . wikidata.org.
  5. [7] ↑ . SIMBAD. wikidata.org.
  6. [8] ↑ . SIMBAD. wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . A RAVE investigation on Galactic open clusters. wikidata.org.
  9. [11] ↑ . Astrophysical parameters of Galactic open clusters. wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . SIMBAD. wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . The orbits of open clusters in the Galaxy. wikidata.org.
  14. [16] ↑ . The orbits of open clusters in the Galaxy. wikidata.org.
  15. [17] ↑ . The orbits of open clusters in the Galaxy. wikidata.org.
  16. [18] ↑ . Proper motions of the optically visible open clusters based on the UCAC4 catalog. wikidata.org.
  17. [19] ↑ . Proper motions of the optically visible open clusters based on the UCAC4 catalog. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . 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). NGC 6639. Retrieved May 7, 2026, from https://4ort.xyz/entity/q1146837
MLA “NGC 6639.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q1146837.
BibTeX @misc{4ortxyz_q1146837_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{NGC 6639}}, year = {2026}, url = {https://4ort.xyz/entity/q1146837}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): NGC 6639 — https://4ort.xyz/entity/q1146837 (retrieved 2026-05-07)

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