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19156 Heco

asteroid
Place asteroid Q3597871

Facts

25 properties

Identity

Instance of
asteroid
More facts +24
Follows
19155 Lifeson[4]
Followed by
(19157) 1990 SS6[5]
Absolute magnitude
13.6 (13.4–13.6, n=3)[15][16][17]
Albedo
+0.145[35]
Apoapsis
+2.717, +2.721603638832662[26][27]
Argument of periapsis
+272.85548, +297.5753275421741[30][31]
Diameter
+5.797[34]
Discoverer or inventor
Tsutomu Seki[1]
Epoch
November 21, 2025[36]
Longitude of ascending node
+213.31597, +213.0261473201048[22][23]
Mean anomaly
+42.24726, +190.6337714002313[32][33]
Minor planet group
asteroid belt[6]
Named after
Joseph Heco[3]
Orbital eccentricity
0.01 (0.01–0.01, n=3)[12][13][14]
Orbital inclination
+1.24413, +1.245659764553116[18][19]
Orbital period
+4.44, +1620.897756560262[20][21]
Parent astronomical body
Sun[7]
Periapsis
+2.6831040, +2.67932109633506[28][29]
Provisional designation
1990 SE4, 1999 TK1[8][9]
Semi-major axis of an orbit
+2.7000091, +2.700462367583861[24][25]
Significant event
naming[11]
Site of astronomical discovery
Geisei observatory[2]
Time of discovery or invention
September 20, 1990[10]
Time of periapsis
+2461763.0703888177[37]
🏷️ Also known as
en Heco en 19156 Heco de (19156) Heco ru Heco ru 1990 SE4 ru (19156) 1990 SE4 ru 1999 TK1 zh 小行星19156
🔖 Identifiers · 3
Google Knowledge Graph ID
/g/11x7vc24c
JPL Small-Body Database SPK-ID
20019156
Minor Planet Center body ID
19156

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🔗 Connections
Discoverer or inventor 1
Tsutomu Seki
Epoch 1
November 21, 2025
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Named after 1
Joseph Heco
Parent astronomical body 1
Sun
Site of astronomical discovery 1
Geisei observatory
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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] ↑ . 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] ↑ . wikidata.org.
  12. [12] ↑ . wikidata.org.
  13. [13] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  14. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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.

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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). 19156 Heco. Retrieved November 1, 2026, from https://4ort.xyz/entity/19156-heco
MLA “19156 Heco.” 4ort.xyz Knowledge Graph, 4ort.xyz, 1 Nov. 2026, https://4ort.xyz/entity/19156-heco.
BibTeX @misc{4ortxyz_19156-heco_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{19156 Heco}}, year = {2026}, url = {https://4ort.xyz/entity/19156-heco}, note = {Accessed: 2026-11-01}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 19156 Heco — https://4ort.xyz/entity/19156-heco (retrieved 2026-11-01)

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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. 26w ago · Shuaib-bot bot · 2026-05-04 view diff on Wikidata ↗
    Argument of periapsis → {'unit': 'Q28390', 'amount': '+272.85548'}, {'unit': 'Q28390', 'amount': '+297.5753275421741'}
    Periapsis → {'unit': 'Q1811', 'amount': '+2.6831040'}, {'unit': 'Q1811', 'amount': '+2.67932109633506'}
    Site of astronomical discovery → Geisei observatory
    Instance of → asteroid
    + 24 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.