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6643 Morikubo

asteroid
Place asteroid Q638917

Facts

24 properties
Instance of
asteroid
Follows
6642 Henze[4]
Followed by
6644 Jugaku[5]
Absolute magnitude
+13.0, +13.17[17][18]
Albedo
+0.07[36]
Apoapsis
+3.930, +3.930170193156239[27][28]
Argument of periapsis
+0.08941, +359.6060284624967[31][32]
Diameter
+13.213[35]
Discoverer or inventor
Yoshio Kushida, Osamu Muramatsu[1][2]
Epoch
November 21, 2025[37]
Longitude of ascending node
+42.47137, +42.46075443108521[23][24]
Mean anomaly
+76.62412, +150.5237462816011[33][34]
Minor planet group
asteroid belt[6]
Orbital eccentricity
0.27 (0.27–0.27, n=3)[14][15][16]
Orbital inclination
+2.84440, +2.844048737134365[19][20]
Orbital period
+5.46, +1994.378588091404[21][22]
Parent astronomical body
Sun[7]
Periapsis
+2.2713445, +2.27141593603822[29][30]
Provisional designation
1979 VK3, 1979 YE2, 1990 UO13, 1990 VZ[8][9][10][11]
Semi-major axis of an orbit
+3.1008559, +3.10079306459723[25][26]
Significant event
naming[13]
Site of astronomical discovery
Yatsugatake South Base Observatory[3]
Time of discovery or invention
November 7, 1990[12]
Time of periapsis
+2460166.6073983796[38]
🏷️ Also known as
en Morikubo en 6643 Morikubo de (6643) Morikubo fa سیارک ۶۶۴۳ ru (6643) 1990 VZ ru (6643) Morikubo ru (6643) Морикубо ru Morikubo ru Морикубо ru 1990 VZ ru 1979 VK3 ru 1979 YE2 ru 1990 UO13 uk 6643 Морікубо zh 小行星6643
🔖 Identifiers · 3
Freebase ID
/m/03y7k4t
JPL Small-Body Database SPK-ID
20006643
Minor Planet Center body ID
6643

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

🔗 Connections
Discoverer or inventor 2
Osamu Muramatsu, Yoshio Kushida
Epoch 1
November 21, 2025
Followed by 1
6644 Jugaku
Followed by (predecessor) 1
6644 Jugaku
Follows 1
6642 Henze
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Preceded by (successor) 1
6642 Henze
Site of astronomical discovery 1
Yatsugatake South Base 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] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [4] ↑ . Minor Planet Center database. wikidata.org.
  5. [5] ↑ . Minor Planet Center database. 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). 6643 Morikubo. Retrieved November 4, 2026, from https://4ort.xyz/entity/6643-morikubo
MLA “6643 Morikubo.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Nov. 2026, https://4ort.xyz/entity/6643-morikubo.
BibTeX @misc{4ortxyz_6643-morikubo_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{6643 Morikubo}}, year = {2026}, url = {https://4ort.xyz/entity/6643-morikubo}, note = {Accessed: 2026-11-04}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 6643 Morikubo — https://4ort.xyz/entity/6643-morikubo (retrieved 2026-11-04)

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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. 3d ago · AbzalM · 2026-10-31 view diff on Wikidata ↗
    Periapsis → {'unit': 'Q1811', 'amount': '+2.2713445'}, {'unit': 'Q1811', 'amount': '+2.27141593603822'}
    Orbital period → {'unit': 'Q577', 'amount': '+5.46'}, {'unit': 'Q573', 'amount': '+1994.378588091404'}
    Wikipedia languages → ['arz', 'ce', 'en', 'eo', 'es', 'fa', 'fi', 'fr', 'ht', 'hu', 'hy', 'it', 'kaa',
    Instance of → asteroid
    + 24 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-and-other-short:0||kaa */ kaawiki sitelink"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.