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8191 Mersenne

asteroid
Place asteroid Q1043429

Facts

25 properties
Instance of
asteroid
Follows
8190 Bouguer[5]
Followed by
8192 Tonucci[6]
Absolute magnitude
14.9 (14.6–14.9, n=3)[17][18][19]
Albedo
+0.306[37]
Apoapsis
+2.513, +2.512324967188282[28][29]
Argument of periapsis
+110.05742, +110.2624483361767[32][33]
Diameter
+2.89[36]
Discoverer or inventor
Eric Walter Elst[1]
Epoch
November 21, 2025[38]
Longitude of ascending node
+302.55849, +302.4963510079596[24][25]
Mean anomaly
+343.12797, +73.22457818103547[34][35]
Minor planet group
asteroid belt[7]
Named after
Marin Mersenne, 8191[3][4]
Orbital eccentricity
0.11 (0.11–0.11, n=3)[14][15][16]
Orbital inclination
+2.82635, +2.827027411447914[20][21]
Orbital period
+3.41, +1243.965748320116[22][23]
Parent astronomical body
Sun[8]
Periapsis
+2.0137383, +2.014947779291521[30][31]
Provisional designation
1980 VA4, 1990 SG20, 1993 OX9[9][10][11]
Semi-major axis of an orbit
+2.2635153, +2.263636373239902[26][27]
Significant event
naming[13]
Site of astronomical discovery
La Silla Observatory[2]
Time of discovery or invention
July 20, 1993[12]
Show all 25 facts +1
Time of periapsis
+2460747.47536891[39]
🏷️ Also known as
en 8191 Mersenne en (8191) Mersenne en Mersenne de 1993 OX9 es Mersenne fa سیارک 8191 fa سیارک ۸۱۹۱ fr Mersenne he מרסן ja メルセンヌ pt Mersenne ru 1980 VA4 ru 1990 SG20 ru 1993 OX9 ru (8191) 1993 OX9 ru Mersenne uk 8191 Mersenne uk 8191 Мерсенн zh 小行星8191
🔖 Identifiers · 3
Freebase ID
/m/03y7fr4
JPL Small-Body Database SPK-ID
20008191
Minor Planet Center body ID
8191

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🔗 Connections
Discoverer or inventor 1
Eric Walter Elst
Epoch 1
November 21, 2025
Followed by 1
8192 Tonucci
Followed by (predecessor) 1
8192 Tonucci
Follows 1
8190 Bouguer
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Named after 1
Marin Mersenne
Parent astronomical body 1
Sun
Preceded by (successor) 1
8190 Bouguer
Site of astronomical discovery 1
La Silla Observatory
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Related Entities

Eric Walter Elst Marin Mersenne

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] ↑ . wikidata.org.
  5. [5] ↑ . Minor Planet Center database. wikidata.org.
  6. [6] ↑ . Minor Planet Center database. 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] ↑ . 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] ↑ . 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). 8191 Mersenne. Retrieved November 2, 2026, from https://4ort.xyz/entity/8191-mersenne
MLA “8191 Mersenne.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Nov. 2026, https://4ort.xyz/entity/8191-mersenne.
BibTeX @misc{4ortxyz_8191-mersenne_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{8191 Mersenne}}, year = {2026}, url = {https://4ort.xyz/entity/8191-mersenne}, note = {Accessed: 2026-11-02}}
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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. 1d ago · AbzalM · 2026-11-02 view diff on Wikidata ↗
    Sitelink count → 26
    Wikipedia languages → ['arz', 'ce', 'de', 'en', 'eo', 'es', 'fa', 'fi', 'fr', 'he', 'hu', 'hy', 'it',
    "/* wbeditentity-update-languages-and-other-short:0||kaa */ kaawiki sitelink"
  2. 4w ago · Kwamikagami · 2026-10-04 view diff on Wikidata ↗
    Significant event → naming
    Followed by → 8192 Tonucci
    Epoch → November 21, 2025
    Sitelink count → 26
    + 27 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ Astronomic symbol image: Mersenne symbol (fixed width).svg"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.