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(20999) 1987 BF

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(20999) 1987 BF

Summary

(20999) 1987 BF is an asteroid[1].

Key Facts

  • (20999) 1987 BF is credited with the discovery of Tsuneo Niijima[2].
  • (20999) 1987 BF is credited with the discovery of Takeshi Urata[3].
  • (20999) 1987 BF's instance of is recorded as asteroid[4].
  • (20999) 1987 BF's site of astronomical discovery is recorded as Ojima[5].
  • (20999) 1987 BF's follows is recorded as 20998 Houzeaudelehaie[6].
  • (20999) 1987 BF's followed by is recorded as 21000 L'Encyclopédie[7].
  • (20999) 1987 BF's minor planet group is recorded as asteroid belt[8].
  • (20999) 1987 BF's parent astronomical body is recorded as Sun[9].
  • (20999) 1987 BF's provisional designation is recorded as 1987 BF[10].
  • (20999) 1987 BF's provisional designation is recorded as 1998 MF20[11].
  • (20999) 1987 BF's time of discovery or invention is recorded as +1987-01-28T00:00:00Z[12].
  • (20999) 1987 BF's JPL Small-Body Database SPK-ID is recorded as 20020999[13].
  • (20999) 1987 BF's orbital eccentricity is recorded as {'amount': '+0.13'}[14].
  • (20999) 1987 BF's orbital eccentricity is recorded as {'amount': '+0.1290771'}[15].
  • (20999) 1987 BF's orbital eccentricity is recorded as {'amount': '+0.1287361824611579'}[16].
  • (20999) 1987 BF's absolute magnitude is recorded as {'amount': '+14.4'}[17].
  • (20999) 1987 BF's absolute magnitude is recorded as {'amount': '+14.58'}[18].
  • (20999) 1987 BF's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+5.07083'}[19].
  • (20999) 1987 BF's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+5.075438994875179'}[20].
  • (20999) 1987 BF's orbital period is recorded as {'unit': 'Q577', 'amount': '+3.44'}[21].
  • (20999) 1987 BF's orbital period is recorded as {'unit': 'Q573', 'amount': '+1256.219387648083'}[22].
  • (20999) 1987 BF's rotation period is recorded as {'unit': 'Q25235', 'amount': '+69.226'}[23].
  • (20999) 1987 BF's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+293.16018'}[24].
  • (20999) 1987 BF's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+292.9886291480412'}[25].
  • (20999) 1987 BF's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.2788148'}[26].

Body

Designation and Status

(20999) 1987 BF's instance of is recorded as asteroid[4].

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

Class ancestry

  1. [1] ↑ . Wikidata. 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). (20999) 1987 BF. Retrieved May 3, 2026, from https://4ort.xyz/entity/20999-1987-bf
MLA “(20999) 1987 BF.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/20999-1987-bf.
BibTeX @misc{4ortxyz_20999-1987-bf_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(20999) 1987 BF}}, year = {2026}, url = {https://4ort.xyz/entity/20999-1987-bf}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (20999) 1987 BF — https://4ort.xyz/entity/20999-1987-bf (retrieved 2026-05-03)

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