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Amalthea

moon of Jupiter
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Amalthea
NASA / JPL · Public Domain · Wikimedia
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Summary

Amalthea is a moon of Jupiter[1]. Amalthea ranks in the top 5% of moon of jupiter entities by monthly Wikipedia readership (1,981 views/month).[2]

Key Facts

  • Discoverer or inventor: Edward Emerson Barnard[3]
  • Instance of: regular moon[4]
  • Site of astronomical discovery: Lick Observatory[5]
  • Named after: Amalthea[6]
  • Commons category: Amalthea[7]
  • Parent astronomical body: Jupiter[8]
  • Time of discovery or invention: September 9, 1892[9]
  • Topic's main category: Category:Amalthea (moon)[10]
  • Orbital eccentricity: 0.00319[11]
  • Apparent magnitude: 14.1[12]
  • Topic has template: Template:GeoTemplate/amalthea[13]
  • Orbital inclination: 0.374 degree[14]
  • Mass: 2.1 zettagram[15]
  • Radius: 83.45 km[16]
  • Orbital period: 0.49817943 day[17]
  • Semi-major axis of an orbit: 181,400 km[18]
  • Volume as quantity: 2,430,000 cubic kilometre[19]
  • Apoapsis: 182,840 km[20]
  • Periapsis: 181,150 km[21]
  • Albedo: 0.09[22]

Why It Matters

Amalthea has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[23] Amalthea is known by 26 alternative names across languages and contexts.[24]

Related Entities

Edward Emerson Barnard

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [3] ↑ . A Short History of Astronomy. wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . A Short History of Astronomy. wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . dx.doi.org. dx.doi.org. Provenance: wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . ssd.jpl.nasa.gov. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [16] ↑ . NASA FACTS. ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [17] ↑ . NASA FACTS. ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [18] ↑ . nssdc.gsfc.nasa.gov. nssdc.gsfc.nasa.gov. Provenance: wikidata.org.
  17. [19] ↑ . NASA FACTS. ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [23] ↑ . Wikidata sitelinks. wikidata.org.
  3. [24] ↑ . 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). Amalthea. Retrieved October 16, 2026, from https://4ort.xyz/entity/amalthea
MLA “Amalthea.” 4ort.xyz Knowledge Graph, 4ort.xyz, 16 Oct. 2026, https://4ort.xyz/entity/amalthea.
BibTeX @misc{4ortxyz_amalthea_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Amalthea}}, year = {2026}, url = {https://4ort.xyz/entity/amalthea}, note = {Accessed: 2026-10-16}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Amalthea — https://4ort.xyz/entity/amalthea (retrieved 2026-10-16)

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