Messier 66

Spiral galaxy in the constellation Leo
Place spiral_galaxy Q13992
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Messier 66

Summary

Messier 66 is a spiral galaxy[1]. It ranks in the top 9% of spiral_galaxy entities by monthly Wikipedia readership (64 views/month).[2]

Key Facts

  • Messier 66 is credited with the discovery of Charles Messier[3].
  • Messier 66 is credited with the discovery of Pierre Méchain[4].
  • Messier 66's image is recorded as M66 Galaxy from the Mount Lemmon SkyCenter Schulman Telescope courtesy Adam Block.jpg[5].
  • Messier 66's instance of is recorded as spiral galaxy[6].
  • Messier 66's instance of is recorded as sub-millimetric source[7].
  • Messier 66's instance of is recorded as HI (21cm) source[8].
  • Messier 66's instance of is recorded as infrared source[9].
  • Messier 66's instance of is recorded as astrophysical X-ray source[10].
  • Messier 66's constellation is recorded as Leo[11].
  • Messier 66's galaxy morphological type is recorded as SAB(s)b[12].
  • Messier 66's galaxy morphological type is recorded as SABb[13].
  • Messier 66's part of is recorded as Leo Triplet[14].
  • Messier 66's part of is recorded as Q67623396[15].
  • Messier 66's part of is recorded as Q67625444[16].
  • Messier 66's Commons category is recorded as Messier 66[17].
  • Messier 66's has part is recorded as Q9326679[18].
  • Messier 66's has part is recorded as Q9326954[19].
  • Messier 66's has part is recorded as Q9327459[20].
  • Messier 66's has part is recorded as Q9331329[21].
  • Messier 66's has part is recorded as Q86897837[22].
  • Messier 66's catalog code is recorded as M 66[23].
  • Messier 66's catalog code is recorded as 2MASX J11201502+1259286[24].
  • Messier 66's catalog code is recorded as MCG+02-29-019[25].
  • Messier 66's catalog code is recorded as UGC 6346[26].
  • Messier 66's catalog code is recorded as NGC 3627[27].

Body

Geography

Part of include Leo Triplet[14], a galaxy group[28]; Q67623396[15]; and Q67625444[16].

Designation and Status

Recorded instance of include spiral galaxy[6], sub-millimetric source[7], HI (21cm) source[8], infrared source[9], and astrophysical X-ray source[10].

History and Context

Catalog codes include M 66[23], 2MASX J11201502+1259286[24], MCG+02-29-019[25], UGC 6346[26], NGC 3627[27], and IRAS F11176+1315[29].

Why It Matters

Messier 66 ranks in the top 9% of spiral_galaxy entities by monthly Wikipedia readership (64 views/month).[2] It has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[30] It is known by 8 alternative names across languages and contexts.[31]

References

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

Direct Wikidata claims

  1. [5] . wikidata.org.
  2. [6] . SIMBAD. Retrieved . wikidata.org.
  3. [7] . SIMBAD. wikidata.org.
  4. [8] . SIMBAD. wikidata.org.
  5. [9] . SIMBAD. wikidata.org.
  6. [10] . SIMBAD. wikidata.org.
  7. [11] . VizieR. wikidata.org.
  8. [3] . messier.seds.org. Retrieved . messier.seds.org. Provenance: wikidata.org.
  9. [4] . wikidata.org.
  10. [12] . SIMBAD. Retrieved . wikidata.org.
  11. [13] . A catalog of visually classified galaxies in the local (z ~ 0.01) universe. wikidata.org.
  12. [14] . SIMBAD. wikidata.org.
  13. [15] . SIMBAD. wikidata.org.
  14. [16] . SIMBAD. wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wis-tns.org. wis-tns.org. Provenance: wikidata.org.
  21. [23] . SIMBAD. wikidata.org.
  22. [24] . SIMBAD. wikidata.org.
  23. [25] . SIMBAD. wikidata.org.
  24. [26] . SIMBAD. wikidata.org.
  25. [27] . SIMBAD. wikidata.org.
  26. [29] . SIMBAD. wikidata.org.

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [30] . Wikidata sitelinks. wikidata.org.
  3. [31] . 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). Messier 66. Retrieved May 3, 2026, from https://4ort.xyz/entity/messier-66
MLA “Messier 66.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/messier-66.
BibTeX @misc{4ortxyz_messier-66_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Messier 66}}, year = {2026}, url = {https://4ort.xyz/entity/messier-66}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Messier 66 — https://4ort.xyz/entity/messier-66 (retrieved 2026-05-03)

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