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(2803) Vilho

asteroid
Thing asteroid Q150127

Facts

26 properties
Instance of
asteroid
Follows
2802 Weisell[4]
Followed by
2804 Yrjö[5]
Absolute magnitude
+11.9, +12.03[21][22]
Albedo
+0.073[41]
Apoapsis
+3.704, +3.705797706784796[32][33]
Argument of periapsis
+43.00276, +42.22244411507893[36][37]
Diameter
+21.441[40]
Discoverer or inventor
Liisi Oterma[1]
Epoch
November 21, 2025[42]
Longitude of ascending node
+20.81693, +20.66730545003156[28][29]
Mean anomaly
+1.18667, +67.24836045738367[38][39]
Minor planet group
asteroid belt[6]
Named after
Vilho Väisälä[3]
Orbital eccentricity
0.18 (0.18–0.18, n=3)[18][19][20]
Orbital inclination
+1.32996, +1.328068868460708[23][24]
Orbital period
+5.57, +2031.066900492508[25][26]
Parent astronomical body
Sun[7]
Periapsis
+2.5794632, +2.571612803660669[34][35]
Provisional designation
1929 XM, 1940 WG, 1962 VE, 1973 SD5, 1976 GF5, 1977 KC1, 1978 ND5, 1979 SZ11[8][9][10][11][12][13][14][15]
Rotation period
+12.5[27]
Semi-major axis of an orbit
+3.1415239, +3.138705255222733[30][31]
Significant event
naming[17]
Site of astronomical discovery
Iso-Heikkilä Observatory[2]
Show all 26 facts +2
Time of discovery or invention
November 29, 1940[16]
Time of periapsis
+2460621.0946693406[43]
🏷️ Also known as
en (2803) Vilho en Vilho el 2803 Βίλχο fa سیارک ۲۸۰۳ ru 1973 SD5 ru 1977 KC1 ru 1978 ND5 ru 1979 SZ11 ru (2803) 1940 WG ru (2803) Вильхо ru Вильхо ru 1976 GF5 ru 1929 XM ru 1940 WG ru 1962 VE uk 2803 Вілхо zh 小行星2803
🔖 Identifiers · 3
Freebase ID
/m/04g2m29
JPL Small-Body Database SPK-ID
20002803
Minor Planet Center body ID
2803

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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] ↑ . wikidata.org.
  8. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [17] ↑ . wikidata.org.
  18. [18] ↑ . wikidata.org.
  19. [19] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  20. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [21] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  22. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [23] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  24. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [25] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  26. [26] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  37. [37] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  38. [38] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  39. [39] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  40. [40] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  41. [41] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  42. [42] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  43. [43] ↑ . 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). (2803) Vilho. Retrieved November 8, 2026, from https://4ort.xyz/entity/2803-vilho
MLA “(2803) Vilho.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Nov. 2026, https://4ort.xyz/entity/2803-vilho.
BibTeX @misc{4ortxyz_2803-vilho_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(2803) Vilho}}, year = {2026}, url = {https://4ort.xyz/entity/2803-vilho}, note = {Accessed: 2026-11-08}}
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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 · 2026-10-30 view diff on Wikidata ↗
    Semi-major axis of an orbit → {'unit': 'Q1811', 'amount': '+3.1415239'}, {'unit': 'Q1811', 'amount': '+3.138705255222733'}
    Orbital eccentricity → {'amount': '+0.18'}, {'amount': '+0.1789134'}, {'amount': '+0.1806771918511414'}
    Followed by → 2804 Yrjö
    Time of discovery or invention → +1940-11-29T00:00:00Z
    + 31 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-and-other-short:0||kaa */ kaawiki sitelink"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.