Charles-Eugène Delaunay

French astronomer and mathematician (1816-1872)
Person human Q375351
Charles-Eugène Delaunay
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Charles-Eugène Delaunay

Summary

Charles-Eugène Delaunay is a human[1]. His place of birth was Lusigny-sur-Barse[2]. He was born on April 9, 1816[3]. He passed away in Cherbourg[4]. He died on August 5, 1872[5]. He worked as an astronomer[6], mathematician[7], and engineer[8]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (37 views/month, #7,280 of 1,000,298).[9]

Key Facts

  • Born in Lusigny-sur-Barse[2], Charles-Eugène Delaunay…
  • Charles-Eugène Delaunay passed away in Cherbourg[4].
  • Charles-Eugène Delaunay was born on April 9, 1816[3].
  • Charles-Eugène Delaunay died on August 5, 1872[5].
  • Charles-Eugène Delaunay held citizenship in France[10].
  • Charles-Eugène Delaunay worked as an astronomer[6].
  • Charles-Eugène Delaunay's professions included mathematician[7].
  • Charles-Eugène Delaunay's professions included engineer[8].
  • Charles-Eugène Delaunay held the position of president of the French Academy of Sciences[11].
  • Charles-Eugène Delaunay held the position of director[12].
  • Charles-Eugène Delaunay was employed by Paris Observatory, PSL University[13].
  • Among Charles-Eugène Delaunay's employers was University of Paris[14].
  • Among Charles-Eugène Delaunay's employers was Mines ParisTech[15].
  • Among Charles-Eugène Delaunay's employers was École polytechnique[16].
  • Charles-Eugène Delaunay was employed by University of Paris[17].
  • Charles-Eugène Delaunay's education included a stint at École polytechnique[18].
  • Charles-Eugène Delaunay was educated at Mines ParisTech[19].
  • Charles-Eugène Delaunay's education included a stint at University of Paris[20].
  • Charles-Eugène Delaunay's education included a stint at Lycée Charlemagne[21].
  • Charles-Eugène Delaunay's education included a stint at Mines ParisTech[22].
  • A notable work attributed to Charles-Eugène Delaunay is Unduloid[23].
  • Charles-Eugène Delaunay received the Gold Medal of the Royal Astronomical Society[24].
  • Charles-Eugène Delaunay received the Foreign Member of the Royal Society[25].
  • Charles-Eugène Delaunay received the Officer of the Legion of Honour[26].
  • Charles-Eugène Delaunay received the 72 names on the Eiffel Tower[27].

Body

Origins and Family

Charles-Eugène Delaunay was born in Lusigny-sur-Barse[2]. He was born on April 9, 1816[3].

Education

Educated at École polytechnique[18], a grande école[28], in France[29], founded in 1794[30], headquartered in Palaiseau[31]; Mines ParisTech[19], an engineering college[32], in France[33], founded in 1783[34], headquartered in Hôtel de Vendôme[35]; University of Paris[20], a former entity[36], in France[37], founded in 1150[38], headquartered in Paris[39]; and Lycée Charlemagne[21], an educational facility[40], in France[41], founded in 1965[42]. Charles-Eugène Delaunay studied under Jean-Baptiste Biot[43].

Career and Affiliations

Recorded occupations include astronomer[6], mathematician[7], and engineer[8]. Employers include Paris Observatory, PSL University[13], a grand établissement[44], in France[45], founded in 1667[46], headquartered in Paris[47]; University of Paris[14], a former entity[48], in France[49], founded in 1150[50], headquartered in Paris[51]; Mines ParisTech[15], an engineering college[52], in France[53], founded in 1783[54], headquartered in Hôtel de Vendôme[55]; and École polytechnique[16], a grande école[56], in France[57], founded in 1794[58], headquartered in Palaiseau[59]. Positions held include president of the French Academy of Sciences[11] and director[12], a profession[60].

Works and Contributions

A notable work attributed to Charles-Eugène Delaunay is Unduloid[23]. Things named for him include Delaunay[61], a lunar crater[62] and 8688 Delaunay[63], an asteroid[64].

Recognition

Awards received include Gold Medal of the Royal Astronomical Society[24], a science award[65], in United Kingdom[66], founded in 1824[67]; Foreign Member of the Royal Society[25], a fellowship award[68], in United Kingdom[69]; Officer of the Legion of Honour[26], a grade of an order[70], in France[71]; 72 names on the Eiffel Tower[27], an inscription[72], in France[73], founded in 1887[74]; and Knight of the Legion of Honour[75], a grade of an order[76], in France[77].

Death and Burial

Charles-Eugène Delaunay died on August 5, 1872[5]. He died in Cherbourg[4]. Recorded cause of death include drowning[78] and maritime accident[79].

Why It Matters

Charles-Eugène Delaunay ranks in the top 0.73% of human entities by monthly Wikipedia readership (37 views/month, #7,280 of 1,000,298).[9] He has Wikipedia articles in 20 language editions, a strong signal of global cultural recognition.[80] He is known by 24 alternative names across languages and contexts.[81]

He has been cited as an influence by George William Hill[82], an astronomer[83], 1838–1914[84], of United States[85], awarded the Copley Medal[86], specialised in astronomy[87].

Entities named for him include Delaunay[61], a lunar crater[62] and 8688 Delaunay[63], an asteroid[64].

FAQs

Where was Charles-Eugène Delaunay born?

Born in Lusigny-sur-Barse[2], Charles-Eugène Delaunay…

Where did Charles-Eugène Delaunay die?

Charles-Eugène Delaunay passed away in Cherbourg[4].

What did Charles-Eugène Delaunay do for work?

Charles-Eugène Delaunay worked as astronomer[6], mathematician[7], and engineer[8].

Where did Charles-Eugène Delaunay go to school?

Charles-Eugène Delaunay was educated at École polytechnique[18], Mines ParisTech[19], University of Paris[20], and Lycée Charlemagne[21].

What awards did Charles-Eugène Delaunay receive?

Honors received include Gold Medal of the Royal Astronomical Society[24], Foreign Member of the Royal Society[25], Officer of the Legion of Honour[26], and 72 names on the Eiffel Tower[27].

Who did Charles-Eugène Delaunay influence?

Charles-Eugène Delaunay has been cited as an influence by George William Hill[82].

References

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

Direct Wikidata claims

  1. [2] . MacTutor History of Mathematics archive. wikidata.org.
  2. [4] . MacTutor History of Mathematics archive. wikidata.org.
  3. [10] . wikidata.org.
  4. [11] . French Academy of Sciences. Retrieved . academie-sciences.fr. Provenance: wikidata.org.
  5. [12] . wikidata.org.
  6. [18] . MacTutor History of Mathematics archive. wikidata.org.
  7. [19] . MacTutor History of Mathematics archive. wikidata.org.
  8. [20] . google.cat. google.cat. Provenance: wikidata.org.
  9. [21] . google.cat. google.cat. Provenance: wikidata.org.
  10. [22] . Mathematics Genealogy Project. wikidata.org.
  11. [6] . wikidata.org.
  12. [7] . wikidata.org.
  13. [8] . wikidata.org.
  14. [13] . MacTutor History of Mathematics archive. wikidata.org.
  15. [14] . MacTutor History of Mathematics archive. wikidata.org.
  16. [15] . MacTutor History of Mathematics archive. wikidata.org.
  17. [16] . MacTutor History of Mathematics archive. wikidata.org.
  18. [17] . MacTutor History of Mathematics archive. wikidata.org.
  19. [24] . wikidata.org.
  20. [25] . Complete List of Royal Society Fellows 1660-2007. wikidata.org.
  21. [26] . wikidata.org.
  22. [27] . toureiffel.paris. toureiffel.paris. Provenance: wikidata.org.
  23. [75] . wikidata.org.
  24. [78] . wikidata.org.
  25. [79] . MacTutor History of Mathematics archive. wikidata.org.
  26. [3] . BnF authorities. Retrieved . wikidata.org.
  27. [5] . BnF authorities. Retrieved . wikidata.org.
  28. [23] . wikidata.org.
  29. [43] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [82] . wikidata.org. → on this site
  2. [61] . wikidata.org. → on this site
  3. [63] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [60] . Wikidata. wikidata.org. → on this site
  2. [28] . Wikidata. wikidata.org. → on this site
  3. [29] . Wikidata. wikidata.org. → on this site
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  25. [52] . Wikidata. wikidata.org. → on this site
  26. [53] . Wikidata. wikidata.org. → on this site
  27. [54] . Wikidata. wikidata.org. → on this site
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  29. [56] . Wikidata. wikidata.org. → on this site
  30. [57] . Wikidata. wikidata.org. → on this site
  31. [58] . Wikidata. wikidata.org. → on this site
  32. [59] . Wikidata. wikidata.org. → on this site
  33. [65] . Wikidata. wikidata.org. → on this site
  34. [66] . Wikidata. wikidata.org. → on this site
  35. [67] . Wikidata. wikidata.org. → on this site
  36. [68] . Wikidata. wikidata.org. → on this site
  37. [69] . Wikidata. wikidata.org. → on this site
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  49. [87] . Wikidata. wikidata.org. → on this site
  50. [62] . Wikidata. wikidata.org. → on this site
  51. [64] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [9] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [80] . Wikidata sitelinks. wikidata.org.
  3. [81] . Wikidata aliases. wikidata.org.

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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). Charles-Eugène Delaunay. Retrieved April 10, 2026, from https://4ort.xyz/entity/charles-eugene-delaunay
MLA “Charles-Eugène Delaunay.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/charles-eugene-delaunay.
BibTeX @misc{4ortxyz_charles-eugene-delaunay_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Charles-Eugène Delaunay}}, year = {2026}, url = {https://4ort.xyz/entity/charles-eugene-delaunay}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Charles-Eugène Delaunay — https://4ort.xyz/entity/charles-eugene-delaunay (retrieved 2026-04-10)

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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. 8d ago · Pigsonthewing · 2026-05-24 view diff on Wikidata ↗
    P14397 5505
    "/* wbsetclaim-create:1||1 */ [[Property:P14397]]: 5505, Matched to [[:toollabs:mix-n-match/#/entry/290073180|Charles Eugène Delaunay (#290073180)]] in [[:toollabs:mix-n-match/#/catalog/7918|‎Darwin Co"
  2. 27d ago · 本日晴天 · 2026-05-06 view diff on Wikidata ↗
    Cinii research id 1980586434773557163
    "/* wbeditentity-statements-multiple-properties-update:0||2 */ added some identifiers retrieved from [[Q115920372]] ([[Property:P11496]]) or [[Q118144223]] ([[Property:P9776]]) ([[:toollabs:editgroups/"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.