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Category:Messier 21

Wikimedia category
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Category:Messier 21

Summary

Category:Messier 21 is a Wikimedia category[1].

Key Facts

  • Category:Messier 21's instance of is recorded as Wikimedia category[2].
  • Category:Messier 21's category's main topic is recorded as Messier 21[3].
  • Category:Messier 21's Commons category is recorded as Messier 21[4].
  • Category:Messier 21's on focus list of Wikimedia project is recorded as Commons categories: recently created wikidata items 3[5].

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. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. 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). Category:Messier 21. Retrieved May 3, 2026, from https://4ort.xyz/entity/category-messier-21
MLA “Category:Messier 21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/category-messier-21.
BibTeX @misc{4ortxyz_category-messier-21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Category:Messier 21}}, year = {2026}, url = {https://4ort.xyz/entity/category-messier-21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Category:Messier 21 — https://4ort.xyz/entity/category-messier-21 (retrieved 2026-05-03)

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