Home › Entities › asteroid › (79139) 1991 SP

(79139) 1991 SP

minor planet
Place asteroid Q4544265
Press Enter · cited answer in seconds

(79139) 1991 SP

Summary

(79139) 1991 SP is an asteroid[1].

Key Facts

  • (79139) 1991 SP is credited with the discovery of Robert H. McNaught[2].
  • (79139) 1991 SP's instance of is recorded as asteroid[3].
  • (79139) 1991 SP's site of astronomical discovery is recorded as Siding Spring Observatory[4].
  • (79139) 1991 SP followed 79138 Mansfeld[5].
  • (79139) 1991 SP was followed by Q15202621[6].
  • (79139) 1991 SP's minor planet group is recorded as asteroid belt[7].
  • (79139) 1991 SP's parent astronomical body is recorded as Sun[8].
  • (79139) 1991 SP's provisional designation is recorded as 1991 SP[9].
  • (79139) 1991 SP's time of discovery or invention is recorded as September 30, 1991[10].
  • (79139) 1991 SP's orbital eccentricity is recorded as {'amount': '+0.1969515429220224'}[11].
  • (79139) 1991 SP's absolute magnitude is recorded as {'amount': '+15.72'}[12].
  • (79139) 1991 SP's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+6.367863055510288'}[13].
  • (79139) 1991 SP's orbital period is recorded as {'unit': 'Q573', 'amount': '+1254.094535577808'}[14].
  • (79139) 1991 SP's rotation period is recorded as {'unit': 'Q25235', 'amount': '+5.45'}[15].
  • (79139) 1991 SP's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+76.84282665071805'}[16].
  • (79139) 1991 SP's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.275907283923117'}[17].
  • (79139) 1991 SP's apoapsis is recorded as {'unit': 'Q1811', 'amount': '+2.724150735039244'}[18].
  • (79139) 1991 SP's periapsis is recorded as {'unit': 'Q1811', 'amount': '+1.827663832806989'}[19].
  • (79139) 1991 SP's argument of periapsis is recorded as {'unit': 'Q28390', 'amount': '+267.8568391190696'}[20].
  • (79139) 1991 SP's mean anomaly is recorded as {'unit': 'Q28390', 'amount': '+345.472160531175'}[21].
  • (79139) 1991 SP's diameter is recorded as {'unit': 'Q828224', 'amount': '+2.582'}[22].
  • (79139) 1991 SP's albedo is recorded as {'amount': '+0.133'}[23].
  • (79139) 1991 SP's epoch is recorded as November 21, 2025[24].
  • (79139) 1991 SP's time of periapsis is recorded as {'unit': 'Q14267', 'amount': '+2461051.1091224765'}[25].

Body

Designation and Status

(79139) 1991 SP'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.
  24. [25] ↑ . 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). (79139) 1991 SP. Retrieved May 3, 2026, from https://4ort.xyz/entity/79139-1991-sp
MLA “(79139) 1991 SP.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/79139-1991-sp.
BibTeX @misc{4ortxyz_79139-1991-sp_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(79139) 1991 SP}}, year = {2026}, url = {https://4ort.xyz/entity/79139-1991-sp}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (79139) 1991 SP — https://4ort.xyz/entity/79139-1991-sp (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/79139-1991-sp · 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. 23d ago · KaleemBot bot · 2026-05-12 view diff on Wikidata ↗
    Discoverer or inventor → Robert H. McNaught
    Orbital eccentricity → {'amount': '+0.1969515429220224'}
    Periapsis → {'unit': 'Q1811', 'amount': '+1.827663832806989'}
    Albedo → {'amount': '+0.133'}
    + 22 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(79139) 1991 ایس پی]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.