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Ganymede

Galilean moon of Jupiter
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Summary

Ganymede is a moon of Jupiter[1]. Ganymede ranks in the top 2% of moon of jupiter entities by monthly Wikipedia readership (18,184 views/month).[2]

Key Facts

  • Discoverer or inventor: Galileo Galilei[3], Simon Marius[4]
  • Instance of: planetary-mass moon[5], regular moon[6]
  • Named after: Ganymede[7]
  • Part of: Galilean moons[8]
  • Commons category: Ganymede (moon)[9]
  • Parent astronomical body: Jupiter[10]
  • Has part(s): Atmosphère de Ganymède[11]
  • Time of discovery or invention: January 7, 1610[12], 1610[13]
  • Topic's main category: Category:Ganymede (moon)[14]
  • Orbital eccentricity: 0.0013[15]
  • Apparent magnitude: 4.61[16]
  • Described by source: Great Soviet Encyclopedia (1926–1947)[17]
  • Topic has template: Template:Ganymede[18], Template:GeoTemplate/ganymede[19]
  • Different from: Ganymed[20]
  • Orbital inclination: 2.214 degree[21]
  • Area: 87,000,000 km²[22]
  • Density: 1.936 gram per cubic centimetre[23]
  • Mass: 148.148 yottagram[24]
  • Magnetic moment: 132,000,000,000,000,000,000 joule per tesla[25]
  • Temperature: 70 K[26], 110 K[27], 152 K[28]
  • Radius: 2634.1 km[29], 2631 km[30]
  • Orbital period: 7.154 day[31]
  • Semi-major axis of an orbit: 1,070,400 km[32]
  • Apoapsis: 1,071,600 km[33]
  • Periapsis: 1,069,200 km[34]

Body

Influence

Things named for Ganymede include Ganymede Heights[35], a mountain[36].

Why It Matters

Ganymede has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[37] Ganymede is known by 36 alternative names across languages and contexts.[38]

Entities named for Ganymede include Ganymede Heights[35], a mountain[36].

Related Entities

Galileo Galilei Ganymede crater database Laplace-P Portugalete Simon Marius The Expanse

References

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

Direct Wikidata claims

  1. [5] ↑ . wikidata.org.
  2. [6] ↑ . wikidata.org.
  3. [3] ↑ . Great Norwegian Encyclopedia. Retrieved . science.nasa.gov. Provenance: wikidata.org.
  4. [4] ↑ . Great Norwegian Encyclopedia. Retrieved . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . science.nasa.gov. Retrieved . science.nasa.gov. Provenance: wikidata.org.
  11. [13] ↑ . Great Norwegian Encyclopedia. Retrieved . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . ssd.jpl.nasa.gov. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [25] ↑ . arxiv.org. arxiv.org. Provenance: wikidata.org.
  24. [26] ↑ . web.archive.org. web.archive.org. Provenance: wikidata.org.
  25. [27] ↑ . wikidata.org.
  26. [28] ↑ . wikidata.org.
  27. [29] ↑ . wikidata.org.
  28. [30] ↑ . Great Norwegian Encyclopedia. Retrieved . wikidata.org.
  29. [31] ↑ . wikidata.org.
  30. [32] ↑ . wikidata.org.
  31. [33] ↑ . wikidata.org.
  32. [34] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [35] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [36] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [37] ↑ . Wikidata sitelinks. wikidata.org.
  3. [38] ↑ . 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). Ganymede. Retrieved October 14, 2026, from https://4ort.xyz/entity/ganymede
MLA “Ganymede.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Oct. 2026, https://4ort.xyz/entity/ganymede.
BibTeX @misc{4ortxyz_ganymede_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Ganymede}}, year = {2026}, url = {https://4ort.xyz/entity/ganymede}, note = {Accessed: 2026-10-14}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Ganymede — https://4ort.xyz/entity/ganymede (retrieved 2026-10-14)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 22w ago · Olksolo · 2026-05-09 view diff on Wikidata ↗
    Density → {'unit': 'Q13147228', 'amount': '+1.936'}
    Instance of → moon of Jupiter, planetary-mass moon, regular moon
    Orbital period → {'unit': 'Q573', 'amount': '+7.154'}
    Has parts → —
    + 28 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1 */ Magnetic moment: 132,000,000,000,000,000,000±500,000,000,000,000,000 ampere square metre"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.