21659 Fredholm

asteroid
Thing asteroid Q147904
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21659 Fredholm

Summary

21659 Fredholm is an asteroid[1]. It has Wikipedia articles in 15 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • 21659 Fredholm is credited with the discovery of Paul G. Comba[3].
  • 21659 Fredholm's instance of is recorded as asteroid[4].
  • 21659 Fredholm's site of astronomical discovery is recorded as Prescott Observatory[5].
  • Erik Ivar Fredholm is named after 21659 Fredholm[6].
  • 21659 Fredholm followed (21658) 1999 PA2[7].
  • 21659 Fredholm was followed by 21660 Velenia[8].
  • 21659 Fredholm's minor planet group is recorded as asteroid belt[9].
  • 21659 Fredholm's parent astronomical body is recorded as Sun[10].
  • 21659 Fredholm's provisional designation is recorded as 1995 UH26[11].
  • 21659 Fredholm's provisional designation is recorded as 1998 HV43[12].
  • 21659 Fredholm's provisional designation is recorded as 1999 PR3[13].
  • 21659 Fredholm's time of discovery or invention is recorded as +1999-08-13T00:00:00Z[14].
  • 21659 Fredholm's significant event is recorded as naming[15].
  • 21659 Fredholm's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.15'}[16].
  • 21659 Fredholm's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1475594'}[17].
  • 21659 Fredholm's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1462990630276698'}[18].
  • 21659 Fredholm's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.6'}[19].
  • 21659 Fredholm's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.87'}[20].
  • 21659 Fredholm's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+4.88713'}[21].
  • 21659 Fredholm's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+4.875880163601495'}[22].
  • 21659 Fredholm's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q577', 'amount': '+4.13'}[23].
  • 21659 Fredholm's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1510.041692418338'}[24].
  • 21659 Fredholm's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+46.80768'}[25].
  • 21659 Fredholm's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+46.69495538324519'}[26].
  • 21659 Fredholm's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.5721655'}[27].

Body

Definition and Type

21659 Fredholm's instance of is recorded as asteroid[4].

Origins

Erik Ivar Fredholm is named after 21659 Fredholm[6].

Why It Matters

21659 Fredholm has Wikipedia articles in 15 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. [4] . 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. [5] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . Minor Planet Center database. wikidata.org.
  7. [9] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [12] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  16. [18] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [19] . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  18. [20] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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). 21659 Fredholm. Retrieved May 7, 2026, from https://4ort.xyz/entity/21659-fredholm
MLA “21659 Fredholm.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/21659-fredholm.
BibTeX @misc{4ortxyz_21659-fredholm_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{21659 Fredholm}}, year = {2026}, url = {https://4ort.xyz/entity/21659-fredholm}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 21659 Fredholm — https://4ort.xyz/entity/21659-fredholm (retrieved 2026-05-07)

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