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Fifth planet

any of various hypothetical planets thought to have existed
Thing general Q1105734
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Fifth planet

Summary

Fifth planet ranks in the top 2% of general entities by monthly Wikipedia readership (104 views/month).[1]

Key Facts

  • Fifth planet's Freebase ID is recorded as /m/025syp3[2].
  • Fifth planet's Microsoft Academic ID is recorded as 8440999[3].

Why It Matters

Fifth planet ranks in the top 2% of general entities by monthly Wikipedia readership (104 views/month).[1] It has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[4]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . Freebase Data Dumps. wikidata.org.
  2. [3] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [4] ↑ . 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). Fifth planet. Retrieved April 10, 2026, from https://4ort.xyz/entity/fifth-planet
MLA “Fifth planet.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/fifth-planet.
BibTeX @misc{4ortxyz_fifth-planet_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Fifth planet}}, year = {2026}, url = {https://4ort.xyz/entity/fifth-planet}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Fifth planet — https://4ort.xyz/entity/fifth-planet (retrieved 2026-04-10)

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