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5780 Lafontaine

asteroid
Thing Asteroid Q644006

Facts

25 properties
Instance of
asteroid
Follows
5779 Schupmann[4]
Followed by
5781 Barkhatova[5]
Absolute magnitude
+12.2, +12.11[18][19]
Albedo
+0.055[37]
Apoapsis
+3.787, +3.809910269487857[28][29]
Argument of periapsis
+115.13633, +116.2627532527996[32][33]
Diameter
+22.593[36]
Discoverer or inventor
Eric Walter Elst[1]
Epoch
November 21, 2025[38]
Longitude of ascending node
+233.30114, +233.0747327844134[24][25]
Mean anomaly
+90.13474, +115.371121810222[34][35]
Minor planet group
asteroid belt, outer asteroid belt[6][7]
Named after
Jean de La Fontaine[3]
Orbital eccentricity
0.14 (0.13–0.14, n=3)[15][16][17]
Orbital inclination
+8.67711, +8.650025711017278[20][21]
Orbital period
+6.12, +2240.221837745228[22][23]
Parent astronomical body
Sun[8]
Periapsis
+2.9076706, +2.891379465515591[30][31]
Provisional designation
1962 TO, 1975 VT1, 1975 XB7, 1990 EJ2[9][10][11][12]
Semi-major axis of an orbit
+3.3475816, +3.350644867501724[26][27]
Significant event
naming[14]
Site of astronomical discovery
La Silla Observatory[2]
Time of discovery or invention
March 2, 1990[13]
Show all 25 facts +1
Time of periapsis
+2460282.5641485434[39]
🏷️ Also known as
en Lafontaine de 1990 EJ2 de (5780) Lafontaine fa سیارک ۵۷۸۰ ja ラ・フォンテーヌ ru 1962 TO ru 1975 VT1 ru 1975 XB7 ru (5780) 1990 EJ2 uk 5780 Лафонтен zh 小行星5780
🔖 Identifiers · 3
Freebase ID
/m/03y6_88
JPL Small-Body Database SPK-ID
20005780
Minor Planet Center body ID
5780

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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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [3] ↑ . 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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [8] ↑ . 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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [14] ↑ . wikidata.org.
  15. [15] ↑ . 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] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  23. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [24] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  25. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  26. [26] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  27. [27] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  28. [28] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  29. [29] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  30. [30] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  31. [31] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  32. [32] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  33. [33] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  34. [34] ↑ . minorplanetcenter.net. minorplanetcenter.net. 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.
  39. [39] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

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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). 5780 Lafontaine. Retrieved November 7, 2026, from https://4ort.xyz/entity/5780-lafontaine
MLA “5780 Lafontaine.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 Nov. 2026, https://4ort.xyz/entity/5780-lafontaine.
BibTeX @misc{4ortxyz_5780-lafontaine_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{5780 Lafontaine}}, year = {2026}, url = {https://4ort.xyz/entity/5780-lafontaine}, note = {Accessed: 2026-11-07}}
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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 ↗
    Periapsis → {'unit': 'Q1811', 'amount': '+2.9076706'}, {'unit': 'Q1811', 'amount': '+2.891379465515591'}
    Orbital period → {'unit': 'Q577', 'amount': '+6.12'}, {'unit': 'Q573', 'amount': '+2240.221837745228'}
    Instance of → asteroid
    Discoverer or inventor → Eric Walter Elst
    + 25 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.