9491 Thooft

Asteroid named after Gerard 't Hooft
Thing asteroid Q158195
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9491 Thooft

Summary

9491 Thooft is an asteroid[1]. It has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • 9491 Thooft is credited with the discovery of Cornelis Johannes van Houten[3].
  • 9491 Thooft is credited with the discovery of Ingrid van Houten-Groeneveld[4].
  • 9491 Thooft is credited with the discovery of Tom Gehrels[5].
  • 9491 Thooft's instance of is recorded as asteroid[6].
  • 9491 Thooft's site of astronomical discovery is recorded as Palomar Observatory[7].
  • Gerard 't Hooft is named after 9491 Thooft[8].
  • 9491 Thooft followed 9490 Gosemeijer[9].
  • 9491 Thooft was followed by Q158199[10].
  • 9491 Thooft's minor planet group is recorded as asteroid belt[11].
  • 9491 Thooft's parent astronomical body is recorded as Sun[12].
  • 9491 Thooft's provisional designation is recorded as 1205 T-1[13].
  • 9491 Thooft's provisional designation is recorded as 1997 CR4[14].
  • 9491 Thooft's time of discovery or invention is recorded as March 25, 1971[15].
  • 9491 Thooft's significant event is recorded as naming[16].
  • 9491 Thooft's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.13'}[17].
  • 9491 Thooft's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1333761'}[18].
  • 9491 Thooft's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1339615192837842'}[19].
  • 9491 Thooft's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.9'}[20].
  • 9491 Thooft's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.0'}[21].
  • 9491 Thooft's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.08'}[22].
  • 9491 Thooft's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+5.04760'}[23].
  • 9491 Thooft's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+5.047712827954554'}[24].
  • 9491 Thooft's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q577', 'amount': '+3.3'}[25].
  • 9491 Thooft's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1203.232601863803'}[26].
  • 9491 Thooft's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+350.36742'}[27].

Body

Definition and Type

9491 Thooft's instance of is recorded as asteroid[6].

Origins

Gerard 't Hooft is named after 9491 Thooft[8].

Why It Matters

9491 Thooft has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[2]

References

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

Direct Wikidata claims

  1. [6] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [3] . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [4] . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [5] . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [7] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . Minor Planet Center database. wikidata.org.
  8. [10] . Minor Planet Center database. wikidata.org.
  9. [11] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [14] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [15] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  17. [19] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  20. [22] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [23] . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  22. [24] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [25] . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  24. [26] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [27] . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikidata sitelinks. 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). 9491 Thooft. Retrieved May 7, 2026, from https://4ort.xyz/entity/9491-thooft
MLA “9491 Thooft.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/9491-thooft.
BibTeX @misc{4ortxyz_9491-thooft_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{9491 Thooft}}, year = {2026}, url = {https://4ort.xyz/entity/9491-thooft}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 9491 Thooft — https://4ort.xyz/entity/9491-thooft (retrieved 2026-05-07)

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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. 12d ago · Marsupil · 2026-05-22 view diff on Wikidata ↗
    Diameter {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount':
    Orbital inclination {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': , {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Site of astronomical discovery Palomar Observatory
    Freebase id /m/05v611
    + 26 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1|1 */ [[Property:P793]]: [[Q25488743]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.