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(12666) 1978 XW

asteroid
Place asteroid Q19624962

Facts

22 properties
Instance of
asteroid
Follows
12665 Chriscarson[5]
Followed by
(12667) 1979 DF[6]
Absolute magnitude
13.6, 13.74[16][17]
Albedo
0.288
Apoapsis
3.609, 3.61318733696802
Argument of periapsis
6.12879, 5.952738181565957
Discoverer or inventor
Edward L. G. Bowell, Archibald Warnock[2][3]
Epoch
May 5, 2025
Longitude of ascending node
105.72488, 105.7014117223414[22][23]
Mean anomaly
107.74476, 231.3303225946946
Minor planet group
asteroid belt[7]
Orbital eccentricity
0.19 (0.18–0.19, n=3)[13][14][15]
Orbital inclination
1.85852, 1.860297107270526[18][19]
Orbital period
5.32, 1934.370546392488[20][21]
Parent astronomical body
Sun[8]
Periapsis
2.4837693, 2.463368481306139
Provisional designation
1985 DE3, 1978 XW, 1975 GC1[9][10][11]
Semi-major axis of an orbit
3.046136, 3.03827790913708
Site of astronomical discovery
Palomar Observatory[4]
Time of discovery or invention
December 6, 1978[12]
Time of periapsis
2461491.8745394074
🏷️ Also known as
en (12666) 1978 XW it (12666) 1978 XW it 12666 Mikeauldridge sv (12666) 1978 XW sv 1978 XW zh 小行星12666
🔖 Identifiers · 4
Freebase ID
/m/0k04z0t
JPL Small-Body Database SPK-ID
20012666
Minor Planet Center body ID
12666
Wolfram Language entity code
Entity["MinorPlanet", "MinorPlanet12666Provisional1978XW"]

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🔗 Connections
Discoverer or inventor 2
Edward L. G. Bowell, Archibald Warnock
Epoch 1
May 5, 2025
Followed by 1
(12667) 1979 DF
Followed by (predecessor) 1
(12667) 1979 DF
Follows 1
12665 Chriscarson
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Preceded by (successor) 1
12665 Chriscarson
Site of astronomical discovery 1
Palomar Observatory
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Summary

(12666) 1978 XW is an asteroid[1].

Related Entities

Edward L. G. Bowell

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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [8] ↑ . 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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  22. [23] ↑ . 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). (12666) 1978 XW. Retrieved November 2, 2026, from https://4ort.xyz/entity/12666-1978-xw
MLA “(12666) 1978 XW.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Nov. 2026, https://4ort.xyz/entity/12666-1978-xw.
BibTeX @misc{4ortxyz_12666-1978-xw_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(12666) 1978 XW}}, year = {2026}, url = {https://4ort.xyz/entity/12666-1978-xw}, note = {Accessed: 2026-11-02}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (12666) 1978 XW — https://4ort.xyz/entity/12666-1978-xw (retrieved 2026-11-02)

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