Home › Entities › globular_cluster › NGC 6638

NGC 6638

globular cluster
Thing globular_cluster Q1146828
Press Enter · cited answer in seconds

NGC 6638

Summary

NGC 6638 is a globular cluster[1]. It has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • NGC 6638 is credited with the discovery of William Herschel[3].
  • NGC 6638's instance of is recorded as globular cluster[4].
  • NGC 6638's constellation is recorded as Sagittarius[5].
  • NGC 6638's Commons category is recorded as NGC 6638[6].
  • NGC 6638's catalog code is recorded as NGC 6638[7].
  • NGC 6638's catalog code is recorded as C 1827-255[8].
  • NGC 6638's catalog code is recorded as GCl 95[9].
  • NGC 6638's catalog code is recorded as [KPS2012] MWSC 2933[10].
  • NGC 6638's time of discovery or invention is recorded as +1784-07-12T00:00:00Z[11].
  • NGC 6638's topic's main category is recorded as Category:NGC 6638[12].
  • NGC 6638's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.68'}[13].
  • NGC 6638's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.81'}[14].
  • NGC 6638's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.977'}[15].
  • NGC 6638's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.351'}[16].
  • NGC 6638's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.033'}[17].
  • NGC 6638's apparent magnitude is recorded as {'unit': '1', 'amount': '+7.849'}[18].
  • NGC 6638's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+9.7'}[19].
  • NGC 6638's metallicity is recorded as {'unit': '1', 'amount': '-1.30'}[20].
  • NGC 6638's metallicity is recorded as {'unit': '1', 'amount': '-1.08'}[21].
  • NGC 6638's metallicity is recorded as {'unit': '1', 'amount': '-1.20'}[22].
  • NGC 6638's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+277.734375'}[23].
  • NGC 6638's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-25.496417'}[24].
  • NGC 6638's epoch is recorded as J2000.0[25].
  • NGC 6638's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-6.39'}[26].
  • NGC 6638's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-4.83'}[27].

Body

Definition and Type

NGC 6638's instance of is recorded as globular cluster[4].

Why It Matters

NGC 6638 has Wikipedia articles in 28 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] ↑ . SIMBAD. wikidata.org.
  2. [5] ↑ . wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . SIMBAD. wikidata.org.
  6. [8] ↑ . SIMBAD. wikidata.org.
  7. [9] ↑ . SIMBAD. wikidata.org.
  8. [10] ↑ . SIMBAD. wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . SIMBAD. wikidata.org.
  12. [14] ↑ . SIMBAD. wikidata.org.
  13. [15] ↑ . G2C2 – I. Homogeneous photometry for Galactic globular clusters in SDSS passbands. wikidata.org.
  14. [16] ↑ . G2C2 – I. Homogeneous photometry for Galactic globular clusters in SDSS passbands. wikidata.org.
  15. [17] ↑ . G2C2 – I. Homogeneous photometry for Galactic globular clusters in SDSS passbands. wikidata.org.
  16. [18] ↑ . G2C2 – I. Homogeneous photometry for Galactic globular clusters in SDSS passbands. wikidata.org.
  17. [19] ↑ . A catalog of parameters for globular clusters in the Milky Way. wikidata.org.
  18. [20] ↑ . Testing three derivative methods of stellar population synthesis models. wikidata.org.
  19. [21] ↑ . Testing three derivative methods of stellar population synthesis models. wikidata.org.
  20. [22] ↑ . Testing three derivative methods of stellar population synthesis models. wikidata.org.
  21. [23] ↑ . RR Lyrae-based calibration of the Globular Cluster Luminosity Function. wikidata.org.
  22. [24] ↑ . RR Lyrae-based calibration of the Globular Cluster Luminosity Function. wikidata.org.
  23. [25] ↑ . RR Lyrae-based calibration of the Globular Cluster Luminosity Function. wikidata.org.
  24. [26] ↑ . Global survey of star clusters in the Milky Way. wikidata.org.
  25. [27] ↑ . Global survey of star clusters in the Milky Way. 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 6638. Retrieved May 7, 2026, from https://4ort.xyz/entity/ngc-6638
MLA “NGC 6638.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/ngc-6638.
BibTeX @misc{4ortxyz_ngc-6638_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{NGC 6638}}, year = {2026}, url = {https://4ort.xyz/entity/ngc-6638}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): NGC 6638 — https://4ort.xyz/entity/ngc-6638 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/ngc-6638 · Last refreshed: