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11885 Summanus

asteroid
Asteroid Q2805310

Facts

26 properties

Identity

Instance of
asteroid, near-Earth object, near-Earth asteroid[2][3]
More facts +25
Follows
(11884) 1990 RD6[6]
Followed by
11886 Kraske[7]
Absolute magnitude
+18.5, +18.52[16][17]
Albedo
+0.033[37]
Apoapsis
+2.512, +2.511599197450918[28][29]
Argument of periapsis
+116.07731, +116.2273385053759[32][33]
Diameter
+1.298[36]
Discoverer or inventor
Spacewatch[1]
Epoch
November 21, 2025[38]
Longitude of ascending node
+359.86275, +359.7628361991912[24][25]
Mean anomaly
+252.75337, +236.6528972056778[34][35]
Minor planet group
Apollo asteroid[8]
Named after
Summanus[5]
Orbital eccentricity
+0.4749436, +0.4745418828337281[14][15]
Orbital inclination
19.4 (19.4–19.4, n=3)[18][19][20]
Orbital period
+2.22, +811.9667797316491[21][22]
Parent astronomical body
Sun[9]
Periapsis
+0.8943351, +0.8950170902115333[30][31]
Provisional designation
1990 SS, 2019 UH87[10][11]
Rotation period
+7.368[23]
Semi-major axis of an orbit
+1.7033126, +1.703308143831226[26][27]
Significant event
naming[13]
Site of astronomical discovery
Kitt Peak National Observatory[4]
Time of discovery or invention
September 25, 1990[12]
Time of periapsis
+2461278.7048606807
🏷️ Also known as
en Summanus en 11885 Summanus de (11885) Summanus fa سیارک ۱۱۸۸۵ ru Summanus ru Сумман ru (11885) Summanus ru (11885) 1990 SS ru (11885) Сумман ru 1990 SS zh 小行星11885
🔖 Identifiers · 3
Freebase ID
/m/0dd9l66
JPL Small-Body Database SPK-ID
20011885
Minor Planet Center body ID
11885

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

🔗 Connections
Instance of 3
asteroid, near-Earth object, near-Earth asteroid
Discoverer or inventor 1
Spacewatch
Epoch 1
November 21, 2025
Followed by 1
11886 Kraske
Followed by (predecessor) 1
11886 Kraske
Follows 1
(11884) 1990 RD6
Minor planet group 1
Apollo asteroid
Named after 1
Summanus
Parent astronomical body 1
Sun
Preceded by (successor) 1
(11884) 1990 RD6
Site of astronomical discovery 1
Kitt Peak National Observatory
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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. [1] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [5] ↑ . wikidata.org.
  6. [6] ↑ . wikidata.org.
  7. [7] ↑ . Minor Planet Center database. wikidata.org.
  8. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [9] ↑ . 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] ↑ . wikidata.org.
  14. [14] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  15. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . 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] ↑ . 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.

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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). 11885 Summanus. Retrieved November 11, 2026, from https://4ort.xyz/entity/11885-summanus
MLA “11885 Summanus.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Nov. 2026, https://4ort.xyz/entity/11885-summanus.
BibTeX @misc{4ortxyz_11885-summanus_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{11885 Summanus}}, year = {2026}, url = {https://4ort.xyz/entity/11885-summanus}, note = {Accessed: 2026-11-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 11885 Summanus — https://4ort.xyz/entity/11885-summanus (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. 12d ago · AbzalM · 2026-10-31 view diff on Wikidata ↗
    Periapsis → 0.894335 astronomical unit, 0.895017 astronomical unit
    Orbital period → 2.22 year, 811.96678 day
    Rotation period → 7.368 hour
    Instance of → asteroid, near-Earth object, near-Earth asteroid
    + 20 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.