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9198 Sasagamine

asteroid
Place asteroid Q691849

Facts

25 properties

Identity

Instance of
asteroid
More facts +24
Follows
9197 Endo[4]
Followed by
(9199) 1993 FO1[5]
Absolute magnitude
+14.2, +14.38[17][18]
Albedo
+0.262[36]
Apoapsis
+2.459, +2.456976314742196[27][28]
Argument of periapsis
+305.86269, +306.5633655174789[31][32]
Diameter
+3.584[35]
Discoverer or inventor
Tsutomu Seki[1]
Epoch
November 21, 2025[37]
Longitude of ascending node
+172.36614, +172.3176725594128[23][24]
Mean anomaly
+283.38738, +260.1146025119219[33][34]
Minor planet group
asteroid belt[6]
Named after
Mount Sasa[3]
Orbital eccentricity
0.09 (0.09–0.09, n=3)[14][15][16]
Orbital inclination
+1.19726, +1.20001029543448[19][20]
Orbital period
+3.39, +1238.480823124934[21][22]
Parent astronomical body
Sun[7]
Periapsis
+2.0548984, +2.056978789420368[29][30]
Provisional designation
1978 WQ16, 1990 HT4, 1992 YJ5, 1993 BJ3[8][9][10][11]
Semi-major axis of an orbit
+2.2570993, +2.256977552081282[25][26]
Significant event
naming[13]
Site of astronomical discovery
Geisei observatory[2]
Time of discovery or invention
January 25, 1993[12]
Time of periapsis
+2461344.128192498[38]
🏷️ Also known as
en 9198 Sasagamine en Sasagamine de (9198) Sasagamine fa سیارک ۹۱۹۸ ja ささがみね ja ササガミネ ja 笹ヶ峰 ja 9198 ささがみね ja 9198 ササガミネ ja 9198 笹ヶ峰 ru 1978 WQ16 ru 1990 HT4 ru 1992 YJ5 ru 1993 BJ3 ru (9198) 1993 BJ3 ru Sasagamine uk 9198 Сасаґаміне zh 小行星9198
🔖 Identifiers · 3
Freebase ID
/m/03yg5fh
JPL Small-Body Database SPK-ID
20009198
Minor Planet Center body ID
9198

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Discoverer or inventor 1
Tsutomu Seki
Epoch 1
November 21, 2025
Followed by 1
(9199) 1993 FO1
Followed by (predecessor) 1
(9199) 1993 FO1
Follows 1
9197 Endo
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Preceded by (successor) 1
9197 Endo
Site of astronomical discovery 1
Geisei observatory
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References

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

Direct Wikidata claims

  1. [1] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [2] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [4] ↑ . Minor Planet Center database. wikidata.org.
  5. [5] ↑ . wikidata.org.
  6. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [7] ↑ . wikidata.org.
  8. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [9] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [13] ↑ . wikidata.org.
  14. [14] ↑ . wikidata.org.
  15. [15] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  16. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [17] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  18. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [19] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  20. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [21] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  22. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [23] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  24. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [25] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  26. [26] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  27. [27] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  28. [28] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  29. [29] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  30. [30] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  31. [31] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  32. [32] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  33. [33] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  34. [34] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  35. [35] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  36. [36] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  37. [37] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  38. [38] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

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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). 9198 Sasagamine. Retrieved November 3, 2026, from https://4ort.xyz/entity/9198-sasagamine
MLA “9198 Sasagamine.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 Nov. 2026, https://4ort.xyz/entity/9198-sasagamine.
BibTeX @misc{4ortxyz_9198-sasagamine_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{9198 Sasagamine}}, year = {2026}, url = {https://4ort.xyz/entity/9198-sasagamine}, note = {Accessed: 2026-11-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 9198 Sasagamine — https://4ort.xyz/entity/9198-sasagamine (retrieved 2026-11-03)

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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. 5d ago · AbzalM · 2026-11-02 view diff on Wikidata ↗
    Orbital inclination → {'unit': 'Q28390', 'amount': '+1.19726'}, {'unit': 'Q28390', 'amount': '+1.20001029543448'}
    Apoapsis → {'unit': 'Q1811', 'amount': '+2.459'}, {'unit': 'Q1811', 'amount': '+2.456976314742196'}
    Discoverer or inventor → Tsutomu Seki
    Site of astronomical discovery → Geisei observatory
    + 26 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-and-other-short:0||kaa */ kaawiki sitelink"
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