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(490418) 2009 SY42

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(490418) 2009 SY42

Summary

(490418) 2009 SY42 is an asteroid[1].

Key Facts

  • (490418) 2009 SY42 is credited with the discovery of Spacewatch[2].
  • (490418) 2009 SY42's instance of is recorded as asteroid[3].
  • (490418) 2009 SY42's site of astronomical discovery is recorded as Kitt Peak National Observatory[4].
  • (490418) 2009 SY42's minor planet group is recorded as Jupiter trojan[5].
  • (490418) 2009 SY42's minor planet group is recorded as Greek camp trojan asteroid[6].
  • (490418) 2009 SY42's parent astronomical body is recorded as Sun[7].
  • (490418) 2009 SY42's provisional designation is recorded as 2009 SY42[8].
  • (490418) 2009 SY42's time of discovery or invention is recorded as +2009-09-16T00:00:00Z[9].
  • (490418) 2009 SY42's JPL Small-Body Database SPK-ID is recorded as 20490418[10].
  • (490418) 2009 SY42's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.06314656245088736'}[11].
  • (490418) 2009 SY42's Lagrangian point is recorded as L4-Jupiter-Sun[12].
  • (490418) 2009 SY42's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.42'}[13].
  • (490418) 2009 SY42's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+16.44739305509264'}[14].
  • (490418) 2009 SY42's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+4261.252101321484'}[15].
  • (490418) 2009 SY42's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+13.5983195245568'}[16].
  • (490418) 2009 SY42's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+5.143900204381644'}[17].
  • (490418) 2009 SY42's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+5.468719819878762'}[18].
  • (490418) 2009 SY42's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+4.819080588884527'}[19].
  • (490418) 2009 SY42's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+45.30275283097757'}[20].
  • (490418) 2009 SY42's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+98.34442737349369'}[21].
  • (490418) 2009 SY42's Google Knowledge Graph ID is recorded as /g/12z65c6kw[22].
  • (490418) 2009 SY42's Minor Planet Center body ID is recorded as 490418[23].
  • (490418) 2009 SY42's epoch is recorded as May 5, 2025[24].
  • (490418) 2009 SY42's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2459636.415561671'}[25].

Body

Designation and Status

(490418) 2009 SY42'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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [6] ↑ . minorplanetcenter.org. minorplanetcenter.org. Provenance: wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [9] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [10] ↑ . JPL Small-Body Database. Retrieved . wikidata.org.
  10. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [12] ↑ . 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] ↑ . wikidata.org.
  22. [23] ↑ . 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). (490418) 2009 SY42. Retrieved May 3, 2026, from https://4ort.xyz/entity/-490418-2009-sy42
MLA “(490418) 2009 SY42.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-490418-2009-sy42.
BibTeX @misc{4ortxyz_-490418-2009-sy42_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(490418) 2009 SY42}}, year = {2026}, url = {https://4ort.xyz/entity/-490418-2009-sy42}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (490418) 2009 SY42 — https://4ort.xyz/entity/-490418-2009-sy42 (retrieved 2026-05-03)

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