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(85191) 1991 RP4

minor planet
Place asteroid Q4544348
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(85191) 1991 RP4

Summary

(85191) 1991 RP4 is an asteroid[1].

Key Facts

  • (85191) 1991 RP4 is credited with the discovery of Seiji Ueda[2].
  • (85191) 1991 RP4 is credited with the discovery of Hiroshi Kaneda[3].
  • (85191) 1991 RP4's instance of is recorded as asteroid[4].
  • (85191) 1991 RP4's site of astronomical discovery is recorded as Kushiro[5].
  • (85191) 1991 RP4 followed 85190 Birgitroth[6].
  • (85191) 1991 RP4 was followed by (85192) 1991 RS11[7].
  • (85191) 1991 RP4's minor planet group is recorded as asteroid belt[8].
  • (85191) 1991 RP4's parent astronomical body is recorded as Sun[9].
  • (85191) 1991 RP4's provisional designation is recorded as 1991 RP4[10].
  • (85191) 1991 RP4's provisional designation is recorded as 2000 OU38[11].
  • (85191) 1991 RP4's time of discovery or invention is recorded as September 7, 1991[12].
  • (85191) 1991 RP4's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.2605761589367472'}[13].
  • (85191) 1991 RP4's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.14'}[14].
  • (85191) 1991 RP4's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+8.25091187679272'}[15].
  • (85191) 1991 RP4's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1670.204813541975'}[16].
  • (85191) 1991 RP4's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+228.1641768961427'}[17].
  • (85191) 1991 RP4's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.754953054795651'}[18].
  • (85191) 1991 RP4's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.47282813986536'}[19].
  • (85191) 1991 RP4's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.037077969725942'}[20].
  • (85191) 1991 RP4's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+118.8472625001991'}[21].
  • (85191) 1991 RP4's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+173.4236380824175'}[22].
  • (85191) 1991 RP4's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+3.809'}[23].
  • (85191) 1991 RP4's albedo is recorded as {'unit': '1', 'amount': '+0.134'}[24].
  • (85191) 1991 RP4's epoch is recorded as November 21, 2025[25].
  • (85191) 1991 RP4's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460195.9083469245'}[26].

Body

Designation and Status

(85191) 1991 RP4'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 . 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.
  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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [26] ↑ . 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). (85191) 1991 RP4. Retrieved May 3, 2026, from https://4ort.xyz/entity/-85191-1991-rp4
MLA “(85191) 1991 RP4.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-85191-1991-rp4.
BibTeX @misc{4ortxyz_-85191-1991-rp4_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(85191) 1991 RP4}}, year = {2026}, url = {https://4ort.xyz/entity/-85191-1991-rp4}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (85191) 1991 RP4 — https://4ort.xyz/entity/-85191-1991-rp4 (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 18w ago · KaleemBot bot · 2026-05-17 view diff on Wikidata ↗
    Follows → 85190 Birgitroth
    Orbital period → {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+
    Mean anomaly → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Imported from → —
    + 24 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(85191) 1991 آر پی 4]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.