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(16538) 1991 PO12

main-belt minor planet
Place asteroid Q711127
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(16538) 1991 PO12

Summary

(16538) 1991 PO12 is an asteroid[1]. (16538) 1991 PO12 has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • (16538) 1991 PO12 is credited with the discovery of Henry E. Holt[3].
  • (16538) 1991 PO12's instance of is recorded as asteroid[4].
  • (16538) 1991 PO12's site of astronomical discovery is recorded as Palomar Observatory[5].
  • (16538) 1991 PO12's follows is recorded as (16537) 1991 PF11[6].
  • (16538) 1991 PO12's followed by is recorded as (16539) 1991 PY12[7].
  • (16538) 1991 PO12's minor planet group is recorded as asteroid belt[8].
  • (16538) 1991 PO12's parent astronomical body is recorded as Sun[9].
  • (16538) 1991 PO12's provisional designation is recorded as 1991 PO12[10].
  • (16538) 1991 PO12's provisional designation is recorded as 1998 QA102[11].
  • (16538) 1991 PO12's time of discovery or invention is recorded as +1991-08-05T00:00:00Z[12].
  • (16538) 1991 PO12's Freebase ID is recorded as /m/0h53grf[13].
  • (16538) 1991 PO12's JPL Small-Body Database SPK-ID is recorded as 20016538[14].
  • (16538) 1991 PO12's orbital eccentricity is recorded as {'amount': '+0.17'}[15].
  • (16538) 1991 PO12's orbital eccentricity is recorded as {'amount': '+0.1712901'}[16].
  • (16538) 1991 PO12's orbital eccentricity is recorded as {'amount': '+0.1710457395943531'}[17].
  • (16538) 1991 PO12's absolute magnitude is recorded as {'amount': '+13.9'}[18].
  • (16538) 1991 PO12's absolute magnitude is recorded as {'amount': '+14.06'}[19].
  • (16538) 1991 PO12's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+5.12196'}[20].
  • (16538) 1991 PO12's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+5.122283902657354'}[21].
  • (16538) 1991 PO12's orbital period is recorded as {'unit': 'Q577', 'amount': '+3.42'}[22].
  • (16538) 1991 PO12's orbital period is recorded as {'unit': 'Q573', 'amount': '+1248.3284761985'}[23].
  • (16538) 1991 PO12's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+145.63166'}[24].
  • (16538) 1991 PO12's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+145.5914467757593'}[25].
  • (16538) 1991 PO12's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.2689385'}[26].
  • (16538) 1991 PO12's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.268925836133882'}[27].

Body

Designation and Status

(16538) 1991 PO12's instance of is recorded as asteroid[4].

Why It Matters

(16538) 1991 PO12 has Wikipedia articles in 5 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] ↑ . JPL Small-Body 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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . 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] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  23. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [26] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  25. [27] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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). (16538) 1991 PO12. Retrieved May 3, 2026, from https://4ort.xyz/entity/16538-1991-po12
MLA “(16538) 1991 PO12.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/16538-1991-po12.
BibTeX @misc{4ortxyz_16538-1991-po12_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(16538) 1991 PO12}}, year = {2026}, url = {https://4ort.xyz/entity/16538-1991-po12}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (16538) 1991 PO12 — https://4ort.xyz/entity/16538-1991-po12 (retrieved 2026-05-03)

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