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(55754) 1991 RP18

minor planet
Place asteroid Q4543909
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(55754) 1991 RP18

Summary

(55754) 1991 RP18 is an asteroid[1]. (55754) 1991 RP18 is known by 3 alternative names across languages and contexts.[2]

Key Facts

  • (55754) 1991 RP18 is credited with the discovery of Henry E. Holt[3].
  • (55754) 1991 RP18's instance of is recorded as asteroid[4].
  • (55754) 1991 RP18's site of astronomical discovery is recorded as Palomar Observatory[5].
  • (55754) 1991 RP18 followed Q968597[6].
  • (55754) 1991 RP18 was followed by 55755 Blythe[7].
  • (55754) 1991 RP18's minor planet group is recorded as asteroid belt[8].
  • (55754) 1991 RP18's parent astronomical body is recorded as Sun[9].
  • (55754) 1991 RP18's provisional designation is recorded as 1991 RP18[10].
  • (55754) 1991 RP18's provisional designation is recorded as 1997 HX13[11].
  • (55754) 1991 RP18's provisional designation is recorded as 2000 GE12[12].
  • (55754) 1991 RP18's time of discovery or invention is recorded as September 13, 1991[13].
  • (55754) 1991 RP18's orbital eccentricity is recorded as {'amount': '+0.1955547894457605'}[14].
  • (55754) 1991 RP18's absolute magnitude is recorded as {'amount': '+16.26'}[15].
  • (55754) 1991 RP18's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+1.230712592910242'}[16].
  • (55754) 1991 RP18's orbital period is recorded as {'unit': 'Q573', 'amount': '+1225.571640471636'}[17].
  • (55754) 1991 RP18's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+317.5346146974179'}[18].
  • (55754) 1991 RP18's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.241266590492911'}[19].
  • (55754) 1991 RP18's apoapsis is recorded as {'unit': 'Q1811', 'amount': '+2.679557006688569'}[20].
  • (55754) 1991 RP18's periapsis is recorded as {'unit': 'Q1811', 'amount': '+1.802976174297252'}[21].
  • (55754) 1991 RP18's argument of periapsis is recorded as {'unit': 'Q28390', 'amount': '+40.25064135665887'}[22].
  • (55754) 1991 RP18's mean anomaly is recorded as {'unit': 'Q28390', 'amount': '+65.29263523448421'}[23].
  • (55754) 1991 RP18's diameter is recorded as {'unit': 'Q828224', 'amount': '+4.3'}[24].
  • (55754) 1991 RP18's albedo is recorded as {'amount': '+0.035'}[25].
  • (55754) 1991 RP18's epoch is recorded as November 21, 2025[26].
  • (55754) 1991 RP18's time of periapsis is recorded as {'unit': 'Q14267', 'amount': '+2460778.219994236'}[27].

Body

Designation and Status

(55754) 1991 RP18's instance of is recorded as asteroid[4].

Why It Matters

(55754) 1991 RP18 is known by 3 alternative names across languages and contexts.[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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [26] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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 aliases. 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). (55754) 1991 RP18. Retrieved May 3, 2026, from https://4ort.xyz/entity/55754-1991-rp18
MLA “(55754) 1991 RP18.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/55754-1991-rp18.
BibTeX @misc{4ortxyz_55754-1991-rp18_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(55754) 1991 RP18}}, year = {2026}, url = {https://4ort.xyz/entity/55754-1991-rp18}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (55754) 1991 RP18 — https://4ort.xyz/entity/55754-1991-rp18 (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. 20d ago · KaleemBot bot · 2026-05-25 view diff on Wikidata ↗
    Orbital period → {'unit': 'Q573', 'amount': '+1225.571640471636'}
    Apoapsis → {'unit': 'Q1811', 'amount': '+2.679557006688569'}
    Time of periapsis → {'unit': 'Q14267', 'amount': '+2460778.219994236'}
    Orbital eccentricity → {'amount': '+0.1955547894457605'}
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(55754) 1991 آر پی 18]]"
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