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IC 42

spiral galaxy in the constellation Cetus
Thing emission_line_galaxy Q3715772
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IC 42

Summary

IC 42 is an emission-line galaxy[1]. IC 42 has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • IC 42 is credited with the discovery of Stéphane Javelle[3].
  • IC 42's instance of is recorded as emission-line galaxy[4].
  • IC 42's constellation is recorded as Cetus[5].
  • IC 42's catalog code is recorded as IC 42[6].
  • IC 42's catalog code is recorded as GSC 05847-01358[7].
  • IC 42's catalog code is recorded as 2MASX J00410585-1525410[8].
  • IC 42's catalog code is recorded as PGC 2463[9].
  • IC 42's catalog code is recorded as MCG-03-02-036[10].
  • IC 42's catalog code is recorded as NVSS J004105-152526[11].
  • IC 42's catalog code is recorded as 6dFGS gJ004105.8-152541[12].
  • IC 42's catalog code is recorded as LEDA 2463[13].
  • IC 42's catalog code is recorded as Gaia DR2 2370991757514032896[14].
  • IC 42's time of discovery or invention is recorded as +1892-08-25T00:00:00Z[15].
  • IC 42's redshift is recorded as {'unit': '1', 'amount': '+0.055138'}[16].
  • IC 42's apparent magnitude is recorded as {'unit': '1', 'amount': '+15'}[17].
  • IC 42's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.42'}[18].
  • IC 42's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.6787'}[19].
  • IC 42's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.814'}[20].
  • IC 42's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.980'}[21].
  • IC 42's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.736'}[22].
  • IC 42's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+16408'}[23].
  • IC 42's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q3773454', 'amount': '+171.40'}[24].
  • IC 42's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+10.27426883538610'}[25].
  • IC 42's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-15.42807088744520'}[26].
  • IC 42's epoch is recorded as J2000.0[27].

Body

Definition and Type

IC 42's instance of is recorded as emission-line galaxy[4].

Why It Matters

IC 42 has Wikipedia articles in 11 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] ↑ . SIMBAD. wikidata.org.
  2. [5] ↑ . VizieR. wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [6] ↑ . SIMBAD. wikidata.org.
  5. [7] ↑ . SIMBAD. wikidata.org.
  6. [8] ↑ . SIMBAD. wikidata.org.
  7. [9] ↑ . SIMBAD. wikidata.org.
  8. [10] ↑ . SIMBAD. wikidata.org.
  9. [11] ↑ . SIMBAD. wikidata.org.
  10. [12] ↑ . SIMBAD. wikidata.org.
  11. [13] ↑ . SIMBAD. wikidata.org.
  12. [14] ↑ . SIMBAD. wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003. wikidata.org.
  15. [17] ↑ . SIMBAD. wikidata.org.
  16. [18] ↑ . The 6dF Galaxy Survey: final redshift release (DR3) and southern large-scale structures. wikidata.org.
  17. [19] ↑ . Gaia Data Release 2. wikidata.org.
  18. [20] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  19. [21] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  20. [22] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  21. [23] ↑ . Cosmicflows-3. wikidata.org.
  22. [24] ↑ . Cosmicflows-3. wikidata.org.
  23. [25] ↑ . Gaia Data Release 2. wikidata.org.
  24. [26] ↑ . Gaia Data Release 2. wikidata.org.
  25. [27] ↑ . Gaia Data Release 2. 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). IC 42. Retrieved May 7, 2026, from https://4ort.xyz/entity/q3715772
MLA “IC 42.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q3715772.
BibTeX @misc{4ortxyz_q3715772_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{IC 42}}, year = {2026}, url = {https://4ort.xyz/entity/q3715772}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): IC 42 — https://4ort.xyz/entity/q3715772 (retrieved 2026-05-07)

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