Thomas Clausen

Danish mathematician and astronomer (1801–1885)
Person human Q541571
Press Enter · cited answer in seconds

Thomas Clausen

Summary

Thomas Clausen is a human[1]. His place of birth was Sønderborg[2]. He was born on January 16, 1801[3]. He died in Tartu[4]. He died on May 24, 1885[5]. He worked as a mathematician[6] and astronomer[7]. He has Wikipedia articles in 13 language editions, a strong signal of global cultural recognition.[8]

Key Facts

  • Born in Sønderborg[2], Thomas Clausen…
  • Thomas Clausen was born in Øster Snogbæk[9].
  • Thomas Clausen died in Tartu[4].
  • Thomas Clausen was born on January 16, 1801[3].
  • Thomas Clausen died on May 24, 1885[5].
  • Thomas Clausen died on May 23, 1885[10].
  • Burial took place at Raadi cemetery[11].
  • Thomas Clausen held citizenship in Duchy of Schleswig[12].
  • Thomas Clausen worked as a mathematician[6].
  • Thomas Clausen's professions included astronomer[7].
  • Thomas Clausen's field of work was mathematics[13].
  • Thomas Clausen's field of work was astronomy[14].
  • Among Thomas Clausen's employers was Imperial University of Dorpat[15].
  • Thomas Clausen was employed by Altona Observatory[16].
  • Among Thomas Clausen's employers was Utzschneider Optical Institute[17].
  • A notable work attributed to Thomas Clausen is Bestimmung der Bahn des Cometen von 1770[18].
  • A notable work attributed to Thomas Clausen is Clausen's formula[19].
  • A notable work attributed to Thomas Clausen is Von Staudt–Clausen theorem[20].
  • A notable work attributed to Thomas Clausen is Clausen function[21].
  • Thomas Clausen received the honorary doctor of the University of Königsberg[22].
  • Thomas Clausen was a member of Göttingen Academy of Sciences and Humanities in Lower Saxony[23].
  • Thomas Clausen is recorded as male[24].
  • Thomas Clausen's instance of is recorded as human[25].
  • Thomas Clausen supervised Ludwig Schwarz as a doctoral student[26].
  • Thomas Clausen's Commons category is recorded as Thomas Clausen (astronomer, 1801)[27].

Body

Origins and Family

Recorded place of birth include Sønderborg[2], a city[28], in Denmark[29] and Øster Snogbæk[9], a village[30], in Denmark[31]. Thomas Clausen was born on January 16, 1801[3].

Education

Thomas Clausen studied under Heinrich Christian Schumacher[32].

Career and Affiliations

Recorded occupations include mathematician[6] and astronomer[7]. Fields of work include mathematics[13], an academic discipline[33] and astronomy[14], a branch of science[34]. Employers include Imperial University of Dorpat[15], an imperial universities of the Russian Empire[35], in Russian Empire[36], founded in 1803[37], headquartered in Tartu[38]; Altona Observatory[16], an astronomical observatory[39], in Germany[40]; and Utzschneider Optical Institute[17], an enterprise[41], in Germany[42], headquartered in Benediktbeuern[43]. Thomas Clausen supervised Ludwig Schwarz as a doctoral student[26].

Works and Contributions

Notable works include Bestimmung der Bahn des Cometen von 1770[18]; Clausen's formula[19], a mathematical concept[44]; Von Staudt–Clausen theorem[20], a theorem[45]; and Clausen function[21]. Things named for Thomas Clausen include Clausen's formula[46], a mathematical concept[47].

Recognition

Thomas Clausen received the honorary doctor of the University of Königsberg[22].

Death and Burial

Recorded date of death include May 24, 1885[5] and May 23, 1885[10]. Thomas Clausen died in Tartu[4]. He is buried at Raadi cemetery[11].

Why It Matters

Thomas Clausen has Wikipedia articles in 13 language editions, a strong signal of global cultural recognition.[8] He is known by 4 alternative names across languages and contexts.[48]

He is credited with the discovery of Clausen function[49]. Entities named for him include Clausen's formula[46], a mathematical concept[47].

His notable doctoral advisees include Ludwig Schwarz[50], an astronomer[51], 1822–1894[52], of Russian Empire[53], awarded the Constantin Medal[54], specialised in astronomy[55].

FAQs

Where was Thomas Clausen born?

Thomas Clausen was born in Sønderborg[2].

Where did Thomas Clausen die?

Thomas Clausen passed away in Tartu[4].

What did Thomas Clausen do for work?

Thomas Clausen worked as mathematician[6] and astronomer[7].

What awards did Thomas Clausen receive?

Honors received include honorary doctor of the University of Königsberg[22].

What did Thomas Clausen discover?

Thomas Clausen is credited as discoverer of Clausen function[49].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [9] . MacTutor History of Mathematics archive. wikidata.org.
  3. [4] . MacTutor History of Mathematics archive. wikidata.org.
  4. [24] . Integrated Authority File. Retrieved . wikidata.org.
  5. [12] . wikidata.org.
  6. [25] . wikidata.org.
  7. [13] . wikidata.org.
  8. [14] . wikidata.org.
  9. [6] . wikidata.org.
  10. [7] . wikidata.org.
  11. [15] . MacTutor History of Mathematics archive. wikidata.org.
  12. [16] . MacTutor History of Mathematics archive. wikidata.org.
  13. [17] . MacTutor History of Mathematics archive. wikidata.org.
  14. [11] . Find a Grave. gis.tartulv.ee. Provenance: wikidata.org.
  15. [22] . wikidata.org.
  16. [26] . wikidata.org.
  17. [27] . wikidata.org.
  18. [23] . wikidata.org.
  19. [3] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  20. [5] . dml.cz. dml.cz. Provenance: wikidata.org.
  21. [10] . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  22. [18] . wikidata.org.
  23. [19] . wikidata.org.
  24. [20] . wikidata.org.
  25. [21] . wikidata.org.
  26. [32] . MacTutor History of Mathematics archive. wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [49] . wikidata.org. → on this site
  2. [50] . wikidata.org. → on this site
  3. [46] . 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. [33] . Wikidata. wikidata.org. → on this site
  6. [34] . Wikidata. wikidata.org. → on this site
  7. [35] . Wikidata. wikidata.org. → on this site
  8. [36] . Wikidata. wikidata.org. → on this site
  9. [37] . Wikidata. wikidata.org. → on this site
  10. [38] . Wikidata. wikidata.org. → on this site
  11. [39] . Wikidata. wikidata.org. → on this site
  12. [40] . Wikidata. wikidata.org. → on this site
  13. [41] . Wikidata. wikidata.org. → on this site
  14. [42] . Wikidata. wikidata.org. → on this site
  15. [43] . Wikidata. wikidata.org. → on this site
  16. [44] . Wikidata. wikidata.org. → on this site
  17. [45] . Wikidata. wikidata.org. → on this site
  18. [51] . Wikidata. wikidata.org. → on this site
  19. [52] . Wikidata. wikidata.org. → on this site
  20. [53] . Wikidata. wikidata.org. → on this site
  21. [54] . Wikidata. wikidata.org. → on this site
  22. [55] . Wikidata. wikidata.org. → on this site
  23. [47] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [8] . Wikidata sitelinks. wikidata.org.
  2. [48] . 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). Thomas Clausen. Retrieved April 10, 2026, from https://4ort.xyz/entity/thomas-clausen
MLA “Thomas Clausen.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/thomas-clausen.
BibTeX @misc{4ortxyz_thomas-clausen_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Thomas Clausen}}, year = {2026}, url = {https://4ort.xyz/entity/thomas-clausen}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Thomas Clausen — https://4ort.xyz/entity/thomas-clausen (retrieved 2026-04-10)

Canonical URL: https://4ort.xyz/entity/thomas-clausen · Last refreshed:

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. 5w ago · Mastrocom · 2026-08-14 view diff on Wikidata ↗
    Sex or gender male
    Award received honorary doctor of the University of Königsberg
    Field of work mathematics, astronomy
    Notable work Bestimmung der Bahn des Cometen von 1770, Clausen's formula, Von Staudt–Clausen theorem +1
    + 25 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-statements-multiple-properties-update:0||2 */ Cleanup: remove wikimedia refs ([[User:Difool/WikidataCleanup]])"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.