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(23183) 2000 OY21

Near-Earth asteroid
Place asteroid Q5981284

Facts

24 properties
Instance of
asteroid, near-Earth object, near-Earth asteroid[3][4]
Follows
23182 Siyaxuza[6]
Followed by
(23184) 2000 OD36[7]
Absolute magnitude
16.0, 16.06[14][15]
Albedo
0.64
Apoapsis
2.556, 2.555485541889723
Argument of periapsis
301.42704, 301.488680965308
Diameter
1.098
Discoverer or inventor
Robert H. McNaught[2]
Epoch
November 21, 2025
Longitude of ascending node
119.67678, 119.6323392089617[21][22]
Mean anomaly
159.05292, 39.12431541549437
Minor planet group
Amor asteroid[8]
Orbital eccentricity
0.4010919, 0.400932748947713[12][13]
Orbital inclination
40.95832, 40.97758717755212[16][17]
Orbital period
2.46, 899.8759345802524[18][19]
Parent astronomical body
Sun[9]
Periapsis
1.0925431, 1.092777436913839
Provisional designation
2000 OY21[10]
Rotation period
6.9809[20]
Semi-major axis of an orbit
1.824225, 1.824131489401781[23]
Site of astronomical discovery
Siding Spring Observatory[5]
Time of discovery or invention
July 28, 2000[11]
Time of periapsis
2460902.7026947243
🏷️ Also known as
en 2000 OY21 en (23183) 2000 OY21 ru 2000 OY21 zh 小行星23183
🔖 Identifiers · 4
Freebase ID
/m/0h63_s5
JPL Small-Body Database SPK-ID
20023183
Minor Planet Center body ID
23183
Wolfram Language entity code
Entity["MinorPlanet", "MinorPlanet23183Provisional2000OY21"]

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🔗 Connections
Instance of 3
asteroid, near-Earth object, near-Earth asteroid
Discoverer or inventor 1
Robert H. McNaught
Epoch 1
November 21, 2025
Follows 1
23182 Siyaxuza
Minor planet group 1
Amor asteroid
Parent astronomical body 1
Sun
Preceded by (successor) 1
23182 Siyaxuza
Site of astronomical discovery 1
Siding Spring Observatory
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Summary

(23183) 2000 OY21 is an asteroid[1].

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. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [2] ↑ . 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] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [9] ↑ . 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] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  12. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [14] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  14. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [21] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  21. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [23] ↑ . 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). (23183) 2000 OY21. Retrieved October 30, 2026, from https://4ort.xyz/entity/23183-2000-oy21
MLA “(23183) 2000 OY21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 30 Oct. 2026, https://4ort.xyz/entity/23183-2000-oy21.
BibTeX @misc{4ortxyz_23183-2000-oy21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(23183) 2000 OY21}}, year = {2026}, url = {https://4ort.xyz/entity/23183-2000-oy21}, note = {Accessed: 2026-10-30}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (23183) 2000 OY21 — https://4ort.xyz/entity/23183-2000-oy21 (retrieved 2026-10-30)

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