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(74778) 1999 RR239

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Place asteroid Q15187958
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(74778) 1999 RR239

Summary

(74778) 1999 RR239 is an asteroid[1].

Key Facts

  • (74778) 1999 RR239 is credited with the discovery of Lowell Observatory Near-Earth-Object Search[2].
  • (74778) 1999 RR239's instance of is recorded as asteroid[3].
  • (74778) 1999 RR239's site of astronomical discovery is recorded as Anderson Mesa Station[4].
  • (74778) 1999 RR239 followed (74777) 1999 RA239[5].
  • (74778) 1999 RR239 was followed by (74779) 1999 RF241[6].
  • (74778) 1999 RR239's minor planet group is recorded as asteroid belt[7].
  • (74778) 1999 RR239's parent astronomical body is recorded as Sun[8].
  • (74778) 1999 RR239's provisional designation is recorded as 1999 RR239[9].
  • (74778) 1999 RR239's time of discovery or invention is recorded as September 8, 1999[10].
  • (74778) 1999 RR239's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1776037311874136'}[11].
  • (74778) 1999 RR239's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.94'}[12].
  • (74778) 1999 RR239's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+5.596567782846108'}[13].
  • (74778) 1999 RR239's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1329.486550617519'}[14].
  • (74778) 1999 RR239's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+110.4235055132027'}[15].
  • (74778) 1999 RR239's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.366230316282947'}[16].
  • (74778) 1999 RR239's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.786481649303572'}[17].
  • (74778) 1999 RR239's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.945978983262322'}[18].
  • (74778) 1999 RR239's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+224.115390854398'}[19].
  • (74778) 1999 RR239's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+345.5409139877801'}[20].
  • (74778) 1999 RR239's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+1.915'}[21].
  • (74778) 1999 RR239's albedo is recorded as {'unit': '1', 'amount': '+0.277'}[22].
  • (74778) 1999 RR239's epoch is recorded as October 17, 2024[23].
  • (74778) 1999 RR239's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460653.897667743'}[24].

Body

Designation and Status

(74778) 1999 RR239's instance of is recorded as asteroid[3].

References

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

Direct Wikidata claims

  1. [3] ↑ . 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. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [8] ↑ . 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.
  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.

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). (74778) 1999 RR239. Retrieved May 3, 2026, from https://4ort.xyz/entity/-74778-1999-rr239
MLA “(74778) 1999 RR239.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-74778-1999-rr239.
BibTeX @misc{4ortxyz_-74778-1999-rr239_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(74778) 1999 RR239}}, year = {2026}, url = {https://4ort.xyz/entity/-74778-1999-rr239}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (74778) 1999 RR239 — https://4ort.xyz/entity/-74778-1999-rr239 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/-74778-1999-rr239 · Last refreshed:

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. 16d ago · LiMrBot bot · 2026-05-25 view diff on Wikidata ↗
    Albedo → {'unit': '1', 'amount': '+0.277'}
    Discoverer or inventor → Lowell Observatory Near-Earth-Object Search
    Apoapsis → {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '
    Orbital inclination → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    + 23 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P1096]]: 0.1776037311874136±0.0000000027625"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.