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(257397) 2009 SL229

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(257397) 2009 SL229

Summary

(257397) 2009 SL229 is an asteroid[1].

Key Facts

  • (257397) 2009 SL229 is credited with the discovery of Mount Lemmon Survey[2].
  • (257397) 2009 SL229's instance of is recorded as asteroid[3].
  • (257397) 2009 SL229's site of astronomical discovery is recorded as Mount Lemmon Observatory[4].
  • (257397) 2009 SL229's followed by is recorded as (257398) 2009 SY246[5].
  • (257397) 2009 SL229's minor planet group is recorded as Jupiter trojan[6].
  • (257397) 2009 SL229's minor planet group is recorded as Greek camp trojan asteroid[7].
  • (257397) 2009 SL229's parent astronomical body is recorded as Sun[8].
  • (257397) 2009 SL229's provisional designation is recorded as 1996 RT21[9].
  • (257397) 2009 SL229's provisional designation is recorded as 2009 SL229[10].
  • (257397) 2009 SL229's time of discovery or invention is recorded as +2009-09-23T00:00:00Z[11].
  • (257397) 2009 SL229's JPL Small-Body Database SPK-ID is recorded as 20257397[12].
  • (257397) 2009 SL229's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.07626017016496314'}[13].
  • (257397) 2009 SL229's Lagrangian point is recorded as L4-Jupiter-Sun[14].
  • (257397) 2009 SL229's absolute magnitude is recorded as {'unit': '1', 'amount': '+13.33'}[15].
  • (257397) 2009 SL229's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+4.704901638758925'}[16].
  • (257397) 2009 SL229's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+4314.649153620008'}[17].
  • (257397) 2009 SL229's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+143.4843348047439'}[18].
  • (257397) 2009 SL229's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+5.186782536360388'}[19].
  • (257397) 2009 SL229's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+5.582327455191891'}[20].
  • (257397) 2009 SL229's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+4.791237617528886'}[21].
  • (257397) 2009 SL229's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+288.9736616750052'}[22].
  • (257397) 2009 SL229's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+47.26656656019255'}[23].
  • (257397) 2009 SL229's Google Knowledge Graph ID is recorded as /g/1hhzg9sdg[24].
  • (257397) 2009 SL229's Minor Planet Center body ID is recorded as 257397[25].
  • (257397) 2009 SL229's epoch is recorded as May 5, 2025[26].

Body

Designation and Status

(257397) 2009 SL229'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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [7] ↑ . minorplanetcenter.org. minorplanetcenter.org. 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 . wikidata.org.
  12. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [14] ↑ . 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] ↑ . wikidata.org.
  24. [25] ↑ . 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). (257397) 2009 SL229. Retrieved May 3, 2026, from https://4ort.xyz/entity/-257397-2009-sl229
MLA “(257397) 2009 SL229.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-257397-2009-sl229.
BibTeX @misc{4ortxyz_-257397-2009-sl229_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(257397) 2009 SL229}}, year = {2026}, url = {https://4ort.xyz/entity/-257397-2009-sl229}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (257397) 2009 SL229 — https://4ort.xyz/entity/-257397-2009-sl229 (retrieved 2026-05-03)

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