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Schwarzschild radius

distance from a massive body where the escape velocity equals the speed of light
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Summary

Schwarzschild radius ranks in the top 2% of general entities by monthly Wikipedia readership (5,115 views/month).[1]

Key Facts

  • Named after: Karl Schwarzschild[2]
  • Subclass of: radius[3], physical quantity[4]
  • Commons category: Schwarzschild's radius[5]
  • Said to be the same as: event horizon[6]
  • On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[7]
  • Maintained by WikiProject: WikiProject Mathematics[8]

Why It Matters

Schwarzschild radius has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.[9] It is known by 35 alternative names across languages and contexts.[10]

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.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [9] ↑ . Wikidata sitelinks. wikidata.org.
  3. [10] ↑ . Wikidata aliases. 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). Schwarzschild radius. Retrieved October 17, 2026, from https://4ort.xyz/entity/schwarzschild-radius
MLA “Schwarzschild radius.” 4ort.xyz Knowledge Graph, 4ort.xyz, 17 Oct. 2026, https://4ort.xyz/entity/schwarzschild-radius.
BibTeX @misc{4ortxyz_schwarzschild-radius_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Schwarzschild radius}}, year = {2026}, url = {https://4ort.xyz/entity/schwarzschild-radius}, note = {Accessed: 2026-10-17}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Schwarzschild radius — https://4ort.xyz/entity/schwarzschild-radius (retrieved 2026-10-17)

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