243 Ida

main-belt asteroid
Place asteroid Q149012
243 Ida
243_ida.jpg: NASA/JPL derivative work:  Chzz  ► · Public Domain · Wikimedia
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243 Ida is an asteroid[1]. It orbits the Sun within the main asteroid belt between Mars and Jupiter. The object was discovered on September 29, 1884, by Austrian astronomer Johann Palisa at the Vienna Observatory[1].

243 Ida measures approximately 53.6 kilometers in length and has an irregular, elongated shape[1]. It is classified as an S-type asteroid, indicating a stony composition[1]. The asteroid has a rotation period of about 4.63 hours[1].

In 1993, 243 Ida became the first asteroid confirmed to have a natural satellite when the Galileo spacecraft photographed its moon, Dactyl[1]. Dactyl orbits Ida at a distance of roughly 90 kilometers[1].

243 Ida

Summary

243 Ida is an asteroid[1]. It ranks in the top 0.12% of asteroid entities by monthly Wikipedia readership (1,003 views/month, #5 of 4,107).[2]

Key Facts

  • 243 Ida is credited with the discovery of Johann Palisa[3].
  • 243 Ida's instance of is recorded as asteroid[4].
  • 243 Ida's site of astronomical discovery is recorded as Vienna Observatory[5].
  • Ida is named after 243 Ida[6].
  • 243 Ida followed 242 Kriemhild[7].
  • 243 Ida was followed by 244 Sita[8].
  • 243 Ida's minor planet group is recorded as asteroid belt[9].
  • 243 Ida's Commons category is recorded as 243 Ida[10].
  • 243 Ida's parent astronomical body is recorded as Sun[11].
  • 243 Ida's child astronomical body is recorded as Dactyl[12].
  • 243 Ida's provisional designation is recorded as 1988 DB1[13].
  • 243 Ida's provisional designation is recorded as A910 CD[14].
  • 243 Ida's provisional designation is recorded as A884 SB[15].
  • 243 Ida's time of discovery or invention is recorded as September 29, 1884[16].
  • 243 Ida's asteroid spectral type is recorded as S-type asteroid[17].
  • 243 Ida's asteroid family is recorded as Koronis family[18].
  • 243 Ida's significant event is recorded as naming[19].
  • 243 Ida's topic's main category is recorded as Category:243 Ida[20].
  • 243 Ida's Commons gallery is recorded as (243) Ida[21].
  • 243 Ida's orbital eccentricity is recorded as {'amount': '+0.04554826377288688'}[22].
  • 243 Ida's topic has template is recorded as Template:GeoTemplate/ida[23].
  • 243 Ida's absolute magnitude is recorded as {'amount': '+10.08'}[24].
  • 243 Ida's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+1.138'}[25].
  • 243 Ida's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+1.130114887490663'}[26].
  • 243 Ida's density is recorded as {'unit': 'Q13147228', 'amount': '+2.6'}[27].

Body

Designation and Status

243 Ida's instance of is recorded as asteroid[4].

History and Context

Ida is named after 243 Ida[6].

Why It Matters

243 Ida ranks in the top 0.12% of asteroid entities by monthly Wikipedia readership (1,003 views/month, #5 of 4,107).[2] It has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[28] It is known by 23 alternative names across languages and contexts.[29]

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] . JPL Small-Body 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] . wikidata.org.
  5. [7] . Minor Planet Center database. wikidata.org.
  6. [8] . Minor Planet Center database. wikidata.org.
  7. [9] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [14] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [15] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [16] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [17] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [18] . nineplanets.org. nineplanets.org. Provenance: wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [25] . 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] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. wikidata.org.
  3. [29] . Wikidata aliases. 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). 243 Ida. Retrieved May 3, 2026, from https://4ort.xyz/entity/243-ida
MLA “243 Ida.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/243-ida.
BibTeX @misc{4ortxyz_243-ida_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{243 Ida}}, year = {2026}, url = {https://4ort.xyz/entity/243-ida}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 243 Ida — https://4ort.xyz/entity/243-ida (retrieved 2026-05-03)

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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. 5w ago · RVA2869 · 2026-07-09 view diff on Wikidata ↗
    Aliases
    Radius {'unit': 'Q828224', 'amount': '+15.7'}
    Significant event naming
    Time of periapsis {'unit': 'Q14267', 'amount': '+2460958.805850328'}
    + 39 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-and-other-short:0||fr, de */ Cleanup: remove wikimedia+self_stated_in refs; remove alias=label/mul ([[User:Difool/WikidataCleanup]])"
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