Hydra

outermost known natural satellite of Pluto
Thing moon_of_pluto Q102701
Hydra
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Hydra

Summary

Hydra is a moon of Pluto[1]. Hydra draws 265 Wikipedia views per month (moon_of_pluto category, ranking #4 of 5).[2]

Key Facts

  • Hydra is credited with the discovery of Alan Stern[3].
  • Hydra is credited with the discovery of Marc Buie[4].
  • Hydra's image is recorded as Hydra 14.07.2015.jpg[5].
  • Hydra's instance of is recorded as moon of Pluto[6].
  • Hydra's site of astronomical discovery is recorded as Hubble Space Telescope[7].
  • Hydra is named after Hydra[8].
  • Hydra's part of is recorded as Pluto System[9].
  • Hydra's astronomic symbol image is recorded as Hydra moon symbol (fixed width).svg[10].
  • Hydra's Commons category is recorded as Hydra (moon)[11].
  • Hydra's parent astronomical body is recorded as Pluto[12].
  • Hydra's pronunciation audio is recorded as De-Hydra.ogg[13].
  • Hydra's provisional designation is recorded as S/2005 P 1[14].
  • Hydra's time of discovery or invention is recorded as +2005-05-15T00:00:00Z[15].
  • Hydra's Freebase ID is recorded as /m/08m_x7[16].
  • Hydra's IPA transcription is recorded as ˈhyːdʁa[17].
  • Hydra's orbital eccentricity is recorded as {'amount': '+0.0051'}[18].
  • Hydra's apparent magnitude is recorded as {'amount': '+23.38'}[19].
  • Hydra's Encyclopædia Britannica Online ID is recorded as topic/Hydra-moon-of-Pluto[20].
  • Hydra's Getty Thesaurus of Geographic Names ID is recorded as 7031546[21].
  • Hydra's different from is recorded as Hydra[22].
  • Hydra's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+0.242'}[23].
  • Hydra's mass is recorded as {'unit': 'Q11570', 'amount': '+50000000000000000'}[24].
  • Hydra's temperature is recorded as {'unit': 'Q11579', 'amount': '+33'}[25].
  • Hydra's temperature is recorded as {'unit': 'Q11579', 'amount': '+55'}[26].
  • Hydra's radius is recorded as {'unit': 'Q828224', 'amount': '+57.5'}[27].

Body

Works and Contributions

Credited discoveries include Alan Stern[3], an astronomer[28], b. 1957[29], of United States[30], awarded the Nature's 10[31], specialised in astrophysics[32] and Marc Buie[4], an astronomer[33], b. 1958[34], of United States[35], specialised in planetary science[36].

Why It Matters

Hydra draws 265 Wikipedia views per month (moon_of_pluto category, ranking #4 of 5).[2] Hydra has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[37] Hydra is known by 30 alternative names across languages and contexts.[38]

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] . wikidata.org.
  4. [4] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . Freebase Data Dumps. 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] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site
  2. [29] . Wikidata. wikidata.org. → on this site
  3. [30] . Wikidata. wikidata.org. → on this site
  4. [31] . Wikidata. wikidata.org. → on this site
  5. [32] . Wikidata. wikidata.org. → on this site
  6. [33] . Wikidata. wikidata.org. → on this site
  7. [34] . Wikidata. wikidata.org. → on this site
  8. [35] . Wikidata. wikidata.org. → on this site
  9. [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). Hydra. Retrieved May 3, 2026, from https://4ort.xyz/entity/hydra-q102701
MLA “Hydra.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hydra-q102701.
BibTeX @misc{4ortxyz_hydra-q102701_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Hydra}}, year = {2026}, url = {https://4ort.xyz/entity/hydra-q102701}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Hydra — https://4ort.xyz/entity/hydra-q102701 (retrieved 2026-05-03)

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