NGC 6645

open cluster in Sagittarius
Thing galaxy Q1146864
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NGC 6645

Summary

NGC 6645 is a galaxy[1]. NGC 6645 has Wikipedia articles in 25 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • NGC 6645 is credited with the discovery of William Herschel[3].
  • NGC 6645's image is recorded as NGC 6645.jpg[4].
  • NGC 6645's instance of is recorded as galaxy[5].
  • NGC 6645's constellation is recorded as Sagittarius[6].
  • NGC 6645's Commons category is recorded as NGC 6645[7].
  • NGC 6645's catalog code is recorded as NGC 6645[8].
  • NGC 6645's catalog code is recorded as OCL 48[9].
  • NGC 6645's catalog code is recorded as C 1829-169[10].
  • NGC 6645's catalog code is recorded as [KPS2012] MWSC 2946[11].
  • NGC 6645's time of discovery or invention is recorded as +1786-06-27T00:00:00Z[12].
  • NGC 6645's topic's main category is recorded as Category:NGC 6645[13].
  • NGC 6645's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.5'}[14].
  • NGC 6645's Google Knowledge Graph ID is recorded as /g/122fj2d3[15].
  • NGC 6645's SIMBAD ID is recorded as NGC 6645[16].
  • NGC 6645's New General Catalogue ID is recorded as 6645[17].
  • NGC 6645's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+278.1300'}[18].
  • NGC 6645's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-16.9100'}[19].
  • NGC 6645's epoch is recorded as J2000.0[20].
  • NGC 6645's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-1.85'}[21].
  • NGC 6645's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-2.24'}[22].

Body

Works and Contributions

NGC 6645 is credited with the discovery of William Herschel[3].

Why It Matters

NGC 6645 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] . wikidata.org.
  6. [8] . SIMBAD. wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . SIMBAD. wikidata.org.
  9. [11] . SIMBAD. wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . SIMBAD. wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . Global survey of star clusters in the Milky Way. wikidata.org.
  17. [19] . Global survey of star clusters in the Milky Way. wikidata.org.
  18. [20] . Global survey of star clusters in the Milky Way. wikidata.org.
  19. [21] . Proper motions of the optically visible open clusters based on the UCAC4 catalog. wikidata.org.
  20. [22] . 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 6645. Retrieved May 7, 2026, from https://4ort.xyz/entity/q1146864
MLA “NGC 6645.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q1146864.
BibTeX @misc{4ortxyz_q1146864_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{NGC 6645}}, year = {2026}, url = {https://4ort.xyz/entity/q1146864}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): NGC 6645 — https://4ort.xyz/entity/q1146864 (retrieved 2026-05-07)

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