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(19991) 1990 SW8

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(19991) 1990 SW8

Summary

(19991) 1990 SW8 is an asteroid[1].

Key Facts

  • (19991) 1990 SW8 is credited with the discovery of Eric Walter Elst[2].
  • (19991) 1990 SW8's instance of is recorded as asteroid[3].
  • (19991) 1990 SW8's site of astronomical discovery is recorded as La Silla Observatory[4].
  • (19991) 1990 SW8's follows is recorded as (19990) 1990 SE8[5].
  • (19991) 1990 SW8's followed by is recorded as 19992 Schönbein[6].
  • (19991) 1990 SW8's minor planet group is recorded as asteroid belt[7].
  • (19991) 1990 SW8's parent astronomical body is recorded as Sun[8].
  • (19991) 1990 SW8's provisional designation is recorded as 1990 SW8[9].
  • (19991) 1990 SW8's provisional designation is recorded as 1999 RK48[10].
  • (19991) 1990 SW8's time of discovery or invention is recorded as +1990-09-22T00:00:00Z[11].
  • (19991) 1990 SW8's JPL Small-Body Database SPK-ID is recorded as 20019991[12].
  • (19991) 1990 SW8's orbital eccentricity is recorded as {'amount': '+0.14'}[13].
  • (19991) 1990 SW8's orbital eccentricity is recorded as {'amount': '+0.1359022'}[14].
  • (19991) 1990 SW8's orbital eccentricity is recorded as {'amount': '+0.137588688175189'}[15].
  • (19991) 1990 SW8's absolute magnitude is recorded as {'amount': '+13.8'}[16].
  • (19991) 1990 SW8's absolute magnitude is recorded as {'amount': '+14.0'}[17].
  • (19991) 1990 SW8's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+12.06922'}[18].
  • (19991) 1990 SW8's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+12.06833719618766'}[19].
  • (19991) 1990 SW8's orbital period is recorded as {'unit': 'Q577', 'amount': '+4.66'}[20].
  • (19991) 1990 SW8's orbital period is recorded as {'unit': 'Q573', 'amount': '+1700.012499005583'}[21].
  • (19991) 1990 SW8's rotation period is recorded as {'unit': 'Q25235', 'amount': '+7.96458'}[22].
  • (19991) 1990 SW8's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+160.37631'}[23].
  • (19991) 1990 SW8's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+160.2949102915589'}[24].
  • (19991) 1990 SW8's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.7899712'}[25].
  • (19991) 1990 SW8's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.787634249513383'}[26].

Body

Designation and Status

(19991) 1990 SW8's instance of is recorded as asteroid[3].

Related Entities

Eric Walter Elst

References

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

Direct Wikidata claims

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

Class ancestry

  1. [1] ↑ . Wikidata. 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). (19991) 1990 SW8. Retrieved May 3, 2026, from https://4ort.xyz/entity/19991-1990-sw8
MLA “(19991) 1990 SW8.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/19991-1990-sw8.
BibTeX @misc{4ortxyz_19991-1990-sw8_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(19991) 1990 SW8}}, year = {2026}, url = {https://4ort.xyz/entity/19991-1990-sw8}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (19991) 1990 SW8 — https://4ort.xyz/entity/19991-1990-sw8 (retrieved 2026-05-03)

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