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(18342) 1989 ST9

minor planet
Place asteroid Q4541980
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(18342) 1989 ST9

Summary

(18342) 1989 ST9 is an asteroid[1].

Key Facts

  • (18342) 1989 ST9 is credited with the discovery of Henri Debehogne[2].
  • (18342) 1989 ST9's instance of is recorded as asteroid[3].
  • (18342) 1989 ST9's site of astronomical discovery is recorded as La Silla Observatory[4].
  • (18342) 1989 ST9 followed (18341) 1989 SJ5[5].
  • (18342) 1989 ST9 was followed by 18343 Asja[6].
  • (18342) 1989 ST9's minor planet group is recorded as asteroid belt[7].
  • (18342) 1989 ST9's parent astronomical body is recorded as Sun[8].
  • (18342) 1989 ST9's provisional designation is recorded as 1989 ST9[9].
  • (18342) 1989 ST9's provisional designation is recorded as 1999 FM14[10].
  • (18342) 1989 ST9's time of discovery or invention is recorded as September 26, 1989[11].
  • (18342) 1989 ST9's orbital eccentricity is recorded as {'amount': '+0.24'}[12].
  • (18342) 1989 ST9's orbital eccentricity is recorded as {'amount': '+0.2352203'}[13].
  • (18342) 1989 ST9's orbital eccentricity is recorded as {'amount': '+0.2349868198025787'}[14].
  • (18342) 1989 ST9's absolute magnitude is recorded as {'amount': '+16.0'}[15].
  • (18342) 1989 ST9's absolute magnitude is recorded as {'amount': '+15.9'}[16].
  • (18342) 1989 ST9's absolute magnitude is recorded as {'amount': '+16.03'}[17].
  • (18342) 1989 ST9's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+2.27148'}[18].
  • (18342) 1989 ST9's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+2.271236258128141'}[19].
  • (18342) 1989 ST9's orbital period is recorded as {'unit': 'Q577', 'amount': '+3.6'}[20].
  • (18342) 1989 ST9's orbital period is recorded as {'unit': 'Q573', 'amount': '+1316.108894184294'}[21].
  • (18342) 1989 ST9's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+19.31307'}[22].
  • (18342) 1989 ST9's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+19.29132396297155'}[23].
  • (18342) 1989 ST9's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.3506818'}[24].
  • (18342) 1989 ST9's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.350330473224339'}[25].
  • (18342) 1989 ST9's apoapsis is recorded as {'unit': 'Q1811', 'amount': '+2.904'}[26].

Body

Designation and Status

(18342) 1989 ST9'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] ↑ . wikidata.org.
  12. [13] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  13. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  16. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [18] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  18. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [20] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  20. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [22] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  22. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [24] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  24. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [26] ↑ . minorplanetcenter.net. minorplanetcenter.net. 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). (18342) 1989 ST9. Retrieved May 3, 2026, from https://4ort.xyz/entity/18342-1989-st9
MLA “(18342) 1989 ST9.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/18342-1989-st9.
BibTeX @misc{4ortxyz_18342-1989-st9_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(18342) 1989 ST9}}, year = {2026}, url = {https://4ort.xyz/entity/18342-1989-st9}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (18342) 1989 ST9 — https://4ort.xyz/entity/18342-1989-st9 (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. 15d ago · KaleemBot bot · 2026-05-18 view diff on Wikidata ↗
    Semi-major axis of an orbit → {'unit': 'Q1811', 'amount': '+2.3506818'}, {'unit': 'Q1811', 'amount': '+2.350330473224339'}
    Minor planet group → asteroid belt
    Orbital eccentricity → {'amount': '+0.24'}, {'amount': '+0.2352203'}, {'amount': '+0.2349868198025787'}
    Site of astronomical discovery → La Silla Observatory
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(18342) 1989 ایس ٹی 9]]"
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