591 Irmgard

main-belt asteroid
Thing asteroid Q155725
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591 Irmgard

Summary

591 Irmgard is an asteroid[1]. It has Wikipedia articles in 37 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • 591 Irmgard is credited with the discovery of August Kopff[3].
  • 591 Irmgard's instance of is recorded as asteroid[4].
  • 591 Irmgard's site of astronomical discovery is recorded as Heidelberg-Königstuhl State Observatory[5].
  • 591 Irmgard's follows is recorded as 590 Tomyris[6].
  • 591 Irmgard's followed by is recorded as Q155728[7].
  • 591 Irmgard's minor planet group is recorded as asteroid belt[8].
  • 591 Irmgard's parent astronomical body is recorded as Sun[9].
  • 591 Irmgard's provisional designation is recorded as A906 EE[10].
  • 591 Irmgard's provisional designation is recorded as 1954 EM[11].
  • 591 Irmgard's provisional designation is recorded as 1955 ML1[12].
  • 591 Irmgard's time of discovery or invention is recorded as +1906-03-14T00:00:00Z[13].
  • 591 Irmgard's Freebase ID is recorded as /m/08ly1p[14].
  • 591 Irmgard's JPL Small-Body Database SPK-ID is recorded as 20000591[15].
  • 591 Irmgard's asteroid spectral type is recorded as X-type asteroid[16].
  • 591 Irmgard's significant event is recorded as naming[17].
  • 591 Irmgard's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.2100299823314297'}[18].
  • 591 Irmgard's absolute magnitude is recorded as {'unit': '1', 'amount': '+10.63'}[19].
  • 591 Irmgard's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+12.473'}[20].
  • 591 Irmgard's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+12.45130730419834'}[21].
  • 591 Irmgard's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1600.678013720135'}[22].
  • 591 Irmgard's rotation period is recorded as {'unit': 'http://www.wikidata.org/entity/Q25235', 'amount': '+7.35'}[23].
  • 591 Irmgard's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+334.0700552857927'}[24].
  • 591 Irmgard's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.677957632761312'}[25].
  • 591 Irmgard's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.240409027054488'}[26].
  • 591 Irmgard's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.115506238468137'}[27].

Body

Works and Contributions

591 Irmgard is credited with the discovery of August Kopff[3].

Why It Matters

591 Irmgard has Wikipedia articles in 37 language editions, a strong signal of global cultural recognition.[2]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [3] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [6] ↑ . Minor Planet Center database. wikidata.org.
  5. [7] ↑ . Minor Planet Center database. wikidata.org.
  6. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [14] ↑ . Freebase Data Dumps. wikidata.org.
  13. [15] ↑ . JPL Small-Body Database. wikidata.org.
  14. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [26] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [27] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.

📑 Cite this page

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). 591 Irmgard. Retrieved October 5, 2026, from https://4ort.xyz/entity/591-irmgard
MLA “591 Irmgard.” 4ort.xyz Knowledge Graph, 4ort.xyz, 5 Oct. 2026, https://4ort.xyz/entity/591-irmgard.
BibTeX @misc{4ortxyz_591-irmgard_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{591 Irmgard}}, year = {2026}, url = {https://4ort.xyz/entity/591-irmgard}, note = {Accessed: 2026-10-05}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 591 Irmgard — https://4ort.xyz/entity/591-irmgard (retrieved 2026-10-05)

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