Henri-Alexandre Deslandres

French astronomer (1853-1948)
Person human Q520771
Henri-Alexandre Deslandres
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Henri-Alexandre Deslandres

Summary

Henri-Alexandre Deslandres is a human[1]. Born in Paris[2], he… he was born on +1853-07-24T00:00:00Z[3]. He died in Paris[4]. He died on +1948-01-15T00:00:00Z[5]. He worked as an astronomer[6], physicist[7], Esperantist[8], and astrophysicist[9]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (11 views/month, #7,290 of 1,000,298).[10]

Key Facts

  • Henri-Alexandre Deslandres's place of birth was Paris[2].
  • Henri-Alexandre Deslandres passed away in Paris[4].
  • Henri-Alexandre Deslandres was born on +1853-07-24T00:00:00Z[3].
  • Henri-Alexandre Deslandres died on +1948-01-15T00:00:00Z[5].
  • Henri-Alexandre Deslandres held citizenship in France[11].
  • Henri-Alexandre Deslandres's professions included astronomer[6].
  • Henri-Alexandre Deslandres's professions included physicist[7].
  • Henri-Alexandre Deslandres worked as an Esperantist[8].
  • Henri-Alexandre Deslandres worked as an astrophysicist[9].
  • Henri-Alexandre Deslandres held the position of president of the French Academy of Sciences[12].
  • Henri-Alexandre Deslandres was employed by Paris Observatory, PSL University[13].
  • Henri-Alexandre Deslandres's education included a stint at École polytechnique[14].
  • Henri-Alexandre Deslandres was educated at University of Paris[15].
  • Henri-Alexandre Deslandres's education included a stint at École d'application de l'artillerie et du génie in Metz[16].
  • Henri-Alexandre Deslandres received the Prix Jules Janssen[17].
  • Henri-Alexandre Deslandres received the Henry Draper Medal[18].
  • Henri-Alexandre Deslandres received the Gold Medal of the Royal Astronomical Society[19].
  • Henri-Alexandre Deslandres received the Bruce Medal[20].
  • Henri-Alexandre Deslandres received the Janssen Medal[21].
  • Henri-Alexandre Deslandres received the Ladies' award of the Astronomical Society of France[22].
  • Henri-Alexandre Deslandres was a member of Royal Society[23].
  • Henri-Alexandre Deslandres was a member of French Academy of Sciences[24].
  • Henri-Alexandre Deslandres was a member of Royal Swedish Academy of Sciences[25].
  • Henri-Alexandre Deslandres was a member of Accademia Nazionale dei Lincei[26].
  • Henri-Alexandre Deslandres was a member of Russian Academy of Sciences[27].

Body

Origins and Family

Born in Paris[2], Henri-Alexandre Deslandres… he was born on +1853-07-24T00:00:00Z[3].

Education

Educated at École polytechnique[14], a grande école[28], in France[29], founded in 1794[30], headquartered in Palaiseau[31]; University of Paris[15], a former entity[32], in France[33], founded in 1150[34], headquartered in Paris[35]; and École d'application de l'artillerie et du génie in Metz[16], a military academy[36], in France[37].

Career and Affiliations

Recorded occupations include astronomer[6], physicist[7], Esperantist[8], and astrophysicist[9]. Henri-Alexandre Deslandres was employed by Paris Observatory, PSL University[13]. He held the position of president of the French Academy of Sciences[12].

Recognition

Awards received include Prix Jules Janssen[17], a science award[38], in France[39], founded in 1897[40]; Henry Draper Medal[18], a physics award[41], in United States[42], founded in 1886[43]; Gold Medal of the Royal Astronomical Society[19], a science award[44], in United Kingdom[45], founded in 1824[46]; Bruce Medal[20], an award[47], in United States[48], founded in 1898[49]; Janssen Medal[21], a science award[50], in France[51], founded in 1886[52]; and Ladies' award of the Astronomical Society of France[22], a science award[53], in France[54], founded in 1896[55].

Death and Burial

Henri-Alexandre Deslandres died on +1948-01-15T00:00:00Z[5]. He passed away in Paris[4].

Works and Contributions

Things named for Henri-Alexandre Deslandres include Deslandres[56], an impact crater[57] and Deslandres prize[58], a science award[59], in France[60], founded in 1946[61].

Why It Matters

Henri-Alexandre Deslandres ranks in the top 0.73% of human entities by monthly Wikipedia readership (11 views/month, #7,290 of 1,000,298).[10] He has Wikipedia articles in 15 language editions, a strong signal of global cultural recognition.[62] He is known by 19 alternative names across languages and contexts.[63]

He is credited with the discovery of spectroheliograph[64], a solar telescope[65]. Entities named for him include Deslandres[56], an impact crater[57] and Deslandres prize[58], a science award[59], in France[60], founded in 1946[61].

FAQs

Where was Henri-Alexandre Deslandres born?

Henri-Alexandre Deslandres was born in Paris[2].

Where did Henri-Alexandre Deslandres die?

Henri-Alexandre Deslandres died in Paris[4].

What did Henri-Alexandre Deslandres do for work?

Henri-Alexandre Deslandres worked as astronomer[6], physicist[7], Esperantist[8], and astrophysicist[9].

Where did Henri-Alexandre Deslandres go to school?

Henri-Alexandre Deslandres was educated at École polytechnique[14], University of Paris[15], and École d'application de l'artillerie et du génie in Metz[16].

What awards did Henri-Alexandre Deslandres receive?

Honors received include Prix Jules Janssen[17], Henry Draper Medal[18], Gold Medal of the Royal Astronomical Society[19], and Bruce Medal[20].

What did Henri-Alexandre Deslandres discover?

Henri-Alexandre Deslandres is credited as discoverer of spectroheliograph[64].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [4] . wikidata.org.
  3. [11] . wikidata.org.
  4. [12] . French Academy of Sciences. Retrieved . academie-sciences.fr. Provenance: wikidata.org.
  5. [14] . wikidata.org.
  6. [15] . wikidata.org.
  7. [16] . bdl.ahp-numerique.fr. bdl.ahp-numerique.fr. Provenance: wikidata.org.
  8. [6] . wikidata.org.
  9. [7] . wikidata.org.
  10. [8] . wikidata.org.
  11. [9] . wikidata.org.
  12. [13] . wikidata.org.
  13. [17] . wikidata.org.
  14. [18] . nasonline.org. nasonline.org. Provenance: wikidata.org.
  15. [19] . wikidata.org.
  16. [20] . phys-astro.sonoma.edu. phys-astro.sonoma.edu. Provenance: wikidata.org.
  17. [21] . wikidata.org.
  18. [22] . wikidata.org.
  19. [23] . wikidata.org.
  20. [24] . wikidata.org.
  21. [25] . wikidata.org.
  22. [26] . Retrieved . wikidata.org.
  23. [27] . Q137170397. wikidata.org.
  24. [3] . BnF authorities. Retrieved . wikidata.org.
  25. [5] . BnF authorities. Retrieved . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [64] . wikidata.org. → on this site
  2. [56] . wikidata.org. → on this site
  3. [58] . wikidata.org. → on this site

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
  10. [37] . Wikidata. wikidata.org. → on this site
  11. [38] . Wikidata. wikidata.org. → on this site
  12. [39] . Wikidata. wikidata.org. → on this site
  13. [40] . Wikidata. wikidata.org. → on this site
  14. [41] . Wikidata. wikidata.org. → on this site
  15. [42] . Wikidata. wikidata.org. → on this site
  16. [43] . Wikidata. wikidata.org. → on this site
  17. [44] . Wikidata. wikidata.org. → on this site
  18. [45] . Wikidata. wikidata.org. → on this site
  19. [46] . Wikidata. wikidata.org. → on this site
  20. [47] . Wikidata. wikidata.org. → on this site
  21. [48] . Wikidata. wikidata.org. → on this site
  22. [49] . Wikidata. wikidata.org. → on this site
  23. [50] . Wikidata. wikidata.org. → on this site
  24. [51] . Wikidata. wikidata.org. → on this site
  25. [52] . Wikidata. wikidata.org. → on this site
  26. [53] . Wikidata. wikidata.org. → on this site
  27. [54] . Wikidata. wikidata.org. → on this site
  28. [55] . Wikidata. wikidata.org. → on this site
  29. [65] . Wikidata. wikidata.org. → on this site
  30. [57] . Wikidata. wikidata.org. → on this site
  31. [59] . Wikidata. wikidata.org. → on this site
  32. [60] . Wikidata. wikidata.org. → on this site
  33. [61] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [10] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [62] . Wikidata sitelinks. wikidata.org.
  3. [63] . Wikidata aliases. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Henri-Alexandre Deslandres. Retrieved April 11, 2026, from https://4ort.xyz/entity/henri-alexandre-deslandres
MLA “Henri-Alexandre Deslandres.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Apr. 2026, https://4ort.xyz/entity/henri-alexandre-deslandres.
BibTeX @misc{4ortxyz_henri-alexandre-deslandres_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Henri-Alexandre Deslandres}}, year = {2026}, url = {https://4ort.xyz/entity/henri-alexandre-deslandres}, note = {Accessed: 2026-04-11}}
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