Home › Entities › asteroid › (29523) 1997 YO21

(29523) 1997 YO21

asteroid
Place asteroid Q6677673

Facts

24 properties
Instance of
asteroid
Follows
(29522) 1997 YL15[4]
Followed by
(29524) 1998 AE[5]
Absolute magnitude
14.7, 14.92[15][16]
Albedo
0.325
Apoapsis
3.071 astronomical unit, 3.073300458004673 astronomical unit
Argument of periapsis
295.42695 degree, 296.3674933159841 degree
Diameter
2.934 km
Discoverer or inventor
Spacewatch[2]
Epoch
May 5, 2025
Imported from
wholeness_audit_2026-05-02
Longitude of ascending node
98.19802 degree, 98.17863720442108 degree[21][22]
Mean anomaly
266.36361 degree, 9.60852113124097 degree
Minor planet group
asteroid belt[6]
Orbital eccentricity
0.1 (0.01–0.1, n=3)[12][13][14]
Orbital inclination
4.65227 degree, 4.652916914036811 degree[17][18]
Orbital period
4.67 year, 1,705.722825151904 day[19][20]
Parent astronomical body
Sun[7]
Periapsis
2.5188998 astronomical unit, 2.514445911985177 astronomical unit
Provisional designation
1991 PU30, 1997 YO21, 1999 GU29[8][9][10]
Semi-major axis of an orbit
2.7951462 astronomical unit, 2.793873184994925 astronomical unit[23][24]
Site of astronomical discovery
Kitt Peak National Observatory[3]
Time of discovery or invention
December 29, 1997[11]
Time of periapsis
2,460,754.9736838625 Julian day
🏷️ Also known as
en (29523) 1997 YO21 ru 1991 PU30 ru 1997 YO21 ru 1999 GU29 zh 小行星29523
🔖 Identifiers · 4
Google Knowledge Graph ID
/g/11gk_31v7y
JPL Small-Body Database SPK-ID
20029523
Minor Planet Center body ID
29523
Wolfram Language entity code
Entity["MinorPlanet", "MinorPlanet29523Provisional1997YO21"]

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

Press Enter · cited answer in seconds

Summary

(29523) 1997 YO21 is an asteroid[1].

References

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

Direct Wikidata claims

  1. [2] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  15. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [17] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  17. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [19] ↑ . minorplanetcenter.net. minorplanetcenter.net. 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.
  23. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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). (29523) 1997 YO21. Retrieved November 3, 2026, from https://4ort.xyz/entity/-29523-1997-yo21
MLA “(29523) 1997 YO21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 Nov. 2026, https://4ort.xyz/entity/-29523-1997-yo21.
BibTeX @misc{4ortxyz_-29523-1997-yo21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(29523) 1997 YO21}}, year = {2026}, url = {https://4ort.xyz/entity/-29523-1997-yo21}, note = {Accessed: 2026-11-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (29523) 1997 YO21 — https://4ort.xyz/entity/-29523-1997-yo21 (retrieved 2026-11-03)

Canonical URL: https://4ort.xyz/entity/-29523-1997-yo21 · Last refreshed: