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21660 Velenia

asteroid
Place Asteroid Q2613933

Facts

25 properties

Identity

Instance of
asteroid
More facts +24
Follows
21659 Fredholm[4]
Followed by
21661 Olgagermani[5]
Absolute magnitude
14.8, 14.96[16][17]
Albedo
0.055
Apoapsis
2.857, 2.847611518177792
Argument of periapsis
239.0919, 240.0431239335126
Diameter
5.952
Discoverer or inventor
Petr Pravec[2]
Epoch
November 21, 2025
Longitude of ascending node
192.07484, 191.9141132588602[23]
Mean anomaly
339.22198, 228.2210912263876
Minor planet group
asteroid belt[6]
Orbital eccentricity
0.04 (0.04–0.04, n=3)[13][14][15]
Orbital inclination
4.78355, 4.792457956083926[18][19]
Orbital period
4.52, 1653.144543710155[20][21]
Parent astronomical body
Sun[7]
Periapsis
2.6143807, 2.624709882159501
Provisional designation
1994 PJ34, 1997 EZ50, 1999 QZ1[8][9][10]
Rotation period
15.0738[22]
Semi-major axis of an orbit
2.7356441, 2.736160700168647
Significant event
naming[12]
Site of astronomical discovery
Ondřejov Observatory[3]
Time of discovery or invention
August 20, 1999[11]
Time of periapsis
2461605.6377333757
🏷️ Also known as
en 21660 Velenia en Velenia de (21660) Velenia fa سیارک 21660 fa سیارک ۲۱۶۶۰ ru 1997 EZ50 ru 1994 PJ34 ru 1999 QZ1 ru (21660) 1999 QZ1 ru Velenia uk 21660 Velenia uk 21660 Веленія zh 小行星21660
🔖 Identifiers · 3
Freebase ID
/m/03yhp_n
JPL Small-Body Database SPK-ID
20021660
Minor Planet Center body ID
21660

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

🔗 Connections
Discoverer or inventor 1
Petr Pravec
Epoch 1
November 21, 2025
Followed by 1
21661 Olgagermani
Followed by (predecessor) 1
21661 Olgagermani
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Site of astronomical discovery 1
Ondřejov Observatory
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Summary

21660 Velenia is an asteroid[1].

References

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

Direct Wikidata claims

  1. [2] ↑ . Minor Planet Center 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] ↑ . Minor Planet Center database. wikidata.org.
  4. [5] ↑ . Minor Planet Center database. 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] ↑ . 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] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  20. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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). 21660 Velenia. Retrieved November 10, 2026, from https://4ort.xyz/entity/21660-velenia
MLA “21660 Velenia.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Nov. 2026, https://4ort.xyz/entity/21660-velenia.
BibTeX @misc{4ortxyz_21660-velenia_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{21660 Velenia}}, year = {2026}, url = {https://4ort.xyz/entity/21660-velenia}, note = {Accessed: 2026-11-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 21660 Velenia — https://4ort.xyz/entity/21660-velenia (retrieved 2026-11-10)

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