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7738 Heyman

asteroid
Place Asteroid Q658020

Facts

25 properties

Identity

Instance of
asteroid
More facts +24
Follows
7737 Sirrah[3]
Followed by
7739 Čech[4]
Absolute magnitude
14.1 (13.9–14.1, n=3)[14][15][16]
Albedo
+0.327[35]
Apoapsis
+2.661, +2.659945707869364[26][27]
Argument of periapsis
+220.58153, +220.4560725032578[30][31]
Diameter
+3.859[34]
Discoverer or inventor
Oak Ridge Observatory[1]
Epoch
November 21, 2025[36]
Longitude of ascending node
+66.30666, +66.26276171009414[22][23]
Mean anomaly
+142.45325, +123.5646338071632[32][33]
Minor planet group
asteroid belt[5]
Orbital eccentricity
0.18 (0.18–0.18, n=3)[11][12][13]
Orbital inclination
+5.95722, +5.956373508208632[17][18]
Orbital period
+3.38, +1232.782934491923[19][20]
Parent astronomical body
Sun[6]
Periapsis
+1.8399297, +1.840153832205331[28][29]
Provisional designation
1981 WS1, 1991 UW[7][8]
Rotation period
+6.66876[21]
Semi-major axis of an orbit
+2.2502676, +2.250049770037347[24][25]
Significant event
naming[10]
Site of astronomical discovery
Oak Ridge Observatory[2]
Time of discovery or invention
November 24, 1981[9]
Time of periapsis
+2460577.3656337103[37]
🏷️ Also known as
en 7738 Heyman en Heyman de (7738) Heyman fa سیارک ۷۷۳۸ ja 7738 ヘイマン ja ヘイマン ru 1981 WS1 ru 1991 UW ru (7738) 1981 WS1 ru Heyman uk 7738 Геймен zh 小行星7738
🔖 Identifiers · 3
Freebase ID
/m/03y3m_x
JPL Small-Body Database SPK-ID
20007738
Minor Planet Center body ID
7738

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

🔗 Connections
Discoverer or inventor 1
Oak Ridge Observatory
Epoch 1
November 21, 2025
Followed by 1
7739 Čech
Followed by (predecessor) 1
7739 Čech
Follows 1
7737 Sirrah
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Preceded by (successor) 1
7737 Sirrah
Site of astronomical discovery 1
Oak Ridge 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. wikidata.org.
  3. [3] ↑ . Minor Planet Center database. wikidata.org.
  4. [4] ↑ . Minor Planet Center database. wikidata.org.
  5. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [6] ↑ . wikidata.org.
  7. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . wikidata.org.
  11. [11] ↑ . wikidata.org.
  12. [12] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  13. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [14] ↑ . wikidata.org.
  15. [15] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  16. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [17] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  18. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . 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). 7738 Heyman. Retrieved November 11, 2026, from https://4ort.xyz/entity/7738-heyman
MLA “7738 Heyman.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Nov. 2026, https://4ort.xyz/entity/7738-heyman.
BibTeX @misc{4ortxyz_7738-heyman_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{7738 Heyman}}, year = {2026}, url = {https://4ort.xyz/entity/7738-heyman}, note = {Accessed: 2026-11-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 7738 Heyman — https://4ort.xyz/entity/7738-heyman (retrieved 2026-11-11)

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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. 10d ago · AbzalM · 2026-11-02 view diff on Wikidata ↗
    Orbital inclination → 5.95722 degree, 5.956374 degree
    Apoapsis → 2.661 astronomical unit, 2.659946 astronomical unit
    Discoverer or inventor → Oak Ridge Observatory
    Site of astronomical discovery → Oak Ridge Observatory
    + 19 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.