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(16420) 1987 UN1

main-belt minor planet
Place asteroid Q238711
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(16420) 1987 UN1

Summary

(16420) 1987 UN1 is an asteroid[1]. (16420) 1987 UN1 has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • (16420) 1987 UN1 is credited with the discovery of Seiji Ueda[3].
  • (16420) 1987 UN1 is credited with the discovery of Hiroshi Kaneda[4].
  • (16420) 1987 UN1's instance of is recorded as asteroid[5].
  • (16420) 1987 UN1's site of astronomical discovery is recorded as Kushiro[6].
  • (16420) 1987 UN1's follows is recorded as 16419 Kovalev[7].
  • (16420) 1987 UN1's followed by is recorded as Q1481371[8].
  • (16420) 1987 UN1's minor planet group is recorded as asteroid belt[9].
  • (16420) 1987 UN1's parent astronomical body is recorded as Sun[10].
  • (16420) 1987 UN1's provisional designation is recorded as 1987 UN1[11].
  • (16420) 1987 UN1's time of discovery or invention is recorded as +1987-10-28T00:00:00Z[12].
  • (16420) 1987 UN1's Freebase ID is recorded as /m/0h3t2kj[13].
  • (16420) 1987 UN1's JPL Small-Body Database SPK-ID is recorded as 20016420[14].
  • (16420) 1987 UN1's orbital eccentricity is recorded as {'amount': '+0.16'}[15].
  • (16420) 1987 UN1's orbital eccentricity is recorded as {'amount': '+0.1633045'}[16].
  • (16420) 1987 UN1's orbital eccentricity is recorded as {'amount': '+0.162406965423365'}[17].
  • (16420) 1987 UN1's absolute magnitude is recorded as {'amount': '+13.9'}[18].
  • (16420) 1987 UN1's absolute magnitude is recorded as {'amount': '+14.08'}[19].
  • (16420) 1987 UN1's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+12.79235'}[20].
  • (16420) 1987 UN1's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+12.79823137330714'}[21].
  • (16420) 1987 UN1's orbital period is recorded as {'unit': 'Q577', 'amount': '+4.4'}[22].
  • (16420) 1987 UN1's orbital period is recorded as {'unit': 'Q573', 'amount': '+1608.339232124473'}[23].
  • (16420) 1987 UN1's rotation period is recorded as {'unit': 'Q25235', 'amount': '+54.7378'}[24].
  • (16420) 1987 UN1's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+227.99393'}[25].
  • (16420) 1987 UN1's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+227.9229289649458'}[26].
  • (16420) 1987 UN1's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.6857292'}[27].

Body

Designation and Status

(16420) 1987 UN1's instance of is recorded as asteroid[5].

Why It Matters

(16420) 1987 UN1 has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[2]

Related Entities

Hiroshi Kaneda

References

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

Direct Wikidata claims

  1. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [3] ↑ . 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. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . 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] ↑ . Freebase Data Dumps. wikidata.org.
  12. [14] ↑ . JPL Small-Body Database. Retrieved . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  15. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  19. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [22] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  21. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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). (16420) 1987 UN1. Retrieved May 3, 2026, from https://4ort.xyz/entity/16420-1987-un1
MLA “(16420) 1987 UN1.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/16420-1987-un1.
BibTeX @misc{4ortxyz_16420-1987-un1_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(16420) 1987 UN1}}, year = {2026}, url = {https://4ort.xyz/entity/16420-1987-un1}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (16420) 1987 UN1 — https://4ort.xyz/entity/16420-1987-un1 (retrieved 2026-05-03)

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