Home › Entities › asteroid › 4557 Mika

4557 Mika

asteroid
Place asteroid Q246601

Facts

25 properties

Identity

Instance of
asteroid
More facts +24
Follows
4556 Gumilyov[4]
Followed by
4558 Janesick[5]
Absolute magnitude
+12.0, +12.03[16][17]
Albedo
+0.188[36]
Apoapsis
+3.172, +3.155850741327492[27][28]
Argument of periapsis
+35.18702, +33.29907464379133[31][32]
Diameter
+14.005[35]
Discoverer or inventor
Masayuki Yanai, Kazurō Watanabe[1][2]
Epoch
November 21, 2025[37]
Longitude of ascending node
+113.06160, +112.8438677104733[23][24]
Mean anomaly
+280.23341, +11.89390382476488[33][34]
Minor planet group
asteroid belt[6]
Orbital eccentricity
0.04 (0.04–0.05, n=3)[13][14][15]
Orbital inclination
+11.28183, +11.3003263921144[18][19]
Orbital period
+5.26, +1920.942968399542[20][21]
Parent astronomical body
Sun[7]
Periapsis
+2.8765619, +2.892551864502297[29][30]
Provisional designation
1966 WN, 1983 AL4, 1987 XD[8][9][10]
Rotation period
+17.2401[22]
Semi-major axis of an orbit
+3.0241222, +3.024201302914894[25][26]
Significant event
naming[12]
Site of astronomical discovery
Kitami Observatory[3]
Time of discovery or invention
December 14, 1987[11]
Time of periapsis
+2460937.0346918916[38]
🏷️ Also known as
en 4557 Mika en Mika de (4557) Mika fa سیارک ۴۵۵۷ ru (4557) Mika ru (4557) Мика ru Mika ru Мика ru (4557) 1987 XD ru 1966 WN ru 1983 AL4 ru 1987 XD uk 4557 Міка zh 小行星4557
🔖 Identifiers · 3
Freebase ID
/m/03y7gmp
JPL Small-Body Database SPK-ID
20004557
Minor Planet Center body ID
4557

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

🔗 Connections
Discoverer or inventor 2
Kazurō Watanabe, Masayuki Yanai
Epoch 1
November 21, 2025
Followed by 1
4558 Janesick
Followed by (predecessor) 1
4558 Janesick
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Site of astronomical discovery 1
Kitami Observatory
Press Enter · cited answer in seconds

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] ↑ . wikidata.org.
  13. [13] ↑ . wikidata.org.
  14. [14] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  15. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [16] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  17. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [18] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  19. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [20] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  21. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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.

📑 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). 4557 Mika. Retrieved November 8, 2026, from https://4ort.xyz/entity/4557-mika
MLA “4557 Mika.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Nov. 2026, https://4ort.xyz/entity/4557-mika.
BibTeX @misc{4ortxyz_4557-mika_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{4557 Mika}}, year = {2026}, url = {https://4ort.xyz/entity/4557-mika}, note = {Accessed: 2026-11-08}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 4557 Mika — https://4ort.xyz/entity/4557-mika (retrieved 2026-11-08)

Canonical URL: https://4ort.xyz/entity/4557-mika · Last refreshed:

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. 8d ago · AbzalM · 2026-10-31 view diff on Wikidata ↗
    Follows → 4556 Gumilyov
    Time of periapsis → {'unit': 'Q14267', 'amount': '+2460937.0346918916'}
    Minor planet group → asteroid belt
    Rotation period → {'unit': 'Q25235', 'amount': '+17.2401'}
    + 19 other properties edited (see Wikidata diff for full list)
    "Changed [kaa] labels, descriptions, aliases and claims: kaawiki sitelink"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.