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(500538) 2012 UN21

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(500538) 2012 UN21

Summary

(500538) 2012 UN21 is an asteroid[1].

Key Facts

  • (500538) 2012 UN21's instance of is recorded as asteroid[2].
  • (500538) 2012 UN21's site of astronomical discovery is recorded as Mount Lemmon Observatory[3].
  • (500538) 2012 UN21's minor planet group is recorded as asteroid belt[4].
  • (500538) 2012 UN21's parent astronomical body is recorded as Sun[5].
  • (500538) 2012 UN21's provisional designation is recorded as 2012 UN21[6].
  • (500538) 2012 UN21's provisional designation is recorded as 2007 TT312[7].
  • (500538) 2012 UN21's time of discovery or invention is recorded as +2007-10-11T00:00:00Z[8].
  • (500538) 2012 UN21's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.09999382680478919'}[9].
  • (500538) 2012 UN21's absolute magnitude is recorded as {'unit': '1', 'amount': '+17.38'}[10].
  • (500538) 2012 UN21's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.853841776404547'}[11].
  • (500538) 2012 UN21's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1837.780280351218'}[12].
  • (500538) 2012 UN21's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+45.66528966314523'}[13].
  • (500538) 2012 UN21's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.936275311464614'}[14].
  • (500538) 2012 UN21's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.229884716410385'}[15].
  • (500538) 2012 UN21's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.642665906518843'}[16].
  • (500538) 2012 UN21's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+339.1316574482782'}[17].
  • (500538) 2012 UN21's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+217.3489978750828'}[18].
  • (500538) 2012 UN21's epoch is recorded as November 21, 2025[19].
  • (500538) 2012 UN21's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2461728.725551882'}[20].

Body

Definition and Type

(500538) 2012 UN21's instance of is recorded as asteroid[2].

References

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

Direct Wikidata claims

  1. [2] ↑ . 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. [5] ↑ . wikidata.org.
  5. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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 . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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). (500538) 2012 UN21. Retrieved May 7, 2026, from https://4ort.xyz/entity/q56323960
MLA “(500538) 2012 UN21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q56323960.
BibTeX @misc{4ortxyz_q56323960_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(500538) 2012 UN21}}, year = {2026}, url = {https://4ort.xyz/entity/q56323960}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (500538) 2012 UN21 — https://4ort.xyz/entity/q56323960 (retrieved 2026-05-07)

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