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IC 840

galaxy
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IC 840

Summary

IC 840 is a HI[1]. It has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • IC 840's instance of is recorded as HI (21cm) source[3].
  • IC 840's instance of is recorded as Seyfert 2 galaxy[4].
  • IC 840's constellation is recorded as Virgo[5].
  • IC 840's galaxy morphological type is recorded as 4[6].
  • IC 840's catalog code is recorded as IC 840[7].
  • IC 840's catalog code is recorded as 2MASX J12584201+1036592[8].
  • IC 840's catalog code is recorded as UGC 8090[9].
  • IC 840's catalog code is recorded as MCG+02-33-040[10].
  • IC 840's catalog code is recorded as PGC 44495[11].
  • IC 840's catalog code is recorded as Z 71-86[12].
  • IC 840's catalog code is recorded as ALFALFA 3-423[13].
  • IC 840's catalog code is recorded as Z 1256.2+1053[14].
  • IC 840's catalog code is recorded as UZC J125842.0+103700[15].
  • IC 840's catalog code is recorded as SDSS J125842.03+103659.4[16].
  • IC 840's catalog code is recorded as LEDA 44495[17].
  • IC 840's catalog code is recorded as Gaia DR2 3735344774001991168[18].
  • IC 840's redshift is recorded as {'unit': '1', 'amount': '+0.03604'}[19].
  • IC 840's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.1'}[20].
  • IC 840's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.8585'}[21].
  • IC 840's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.551'}[22].
  • IC 840's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.742'}[23].
  • IC 840's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.325'}[24].
  • IC 840's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.360'}[25].
  • IC 840's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.710'}[26].
  • IC 840's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.044'}[27].

Body

Definition and Type

Recorded instance of include HI (21cm) source[3] and Seyfert 2 galaxy[4].

Why It Matters

IC 840 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. [3] ↑ . SIMBAD. wikidata.org.
  2. [4] ↑ . SIMBAD. wikidata.org.
  3. [5] ↑ . VizieR. wikidata.org.
  4. [6] ↑ . The EFIGI catalogue of 4458 nearby galaxies with detailed morphology. 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. Retrieved . haroldcorwin.net. Provenance: wikidata.org.
  10. [12] ↑ . SIMBAD. wikidata.org.
  11. [13] ↑ . SIMBAD. wikidata.org.
  12. [14] ↑ . SIMBAD. wikidata.org.
  13. [15] ↑ . SIMBAD. wikidata.org.
  14. [16] ↑ . SIMBAD. wikidata.org.
  15. [17] ↑ . SIMBAD. wikidata.org.
  16. [18] ↑ . SIMBAD. wikidata.org.
  17. [19] ↑ . The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey. wikidata.org.
  18. [20] ↑ . SIMBAD. wikidata.org.
  19. [21] ↑ . Gaia Data Release 2. wikidata.org.
  20. [22] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  21. [23] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  22. [24] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  23. [25] ↑ . The SDSS Photometric Catalog, Release 7. wikidata.org.
  24. [26] ↑ . The SDSS Photometric Catalog, Release 7. wikidata.org.
  25. [27] ↑ . The SDSS Photometric Catalog, Release 7. 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 840. Retrieved May 7, 2026, from https://4ort.xyz/entity/q3711544
MLA “IC 840.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q3711544.
BibTeX @misc{4ortxyz_q3711544_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{IC 840}}, year = {2026}, url = {https://4ort.xyz/entity/q3711544}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): IC 840 — https://4ort.xyz/entity/q3711544 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q3711544 · Last refreshed:

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. 15w ago · InternetArchiveBot bot · 2026-05-19 view diff on Wikidata ↗
    Google knowledge graph id → /g/122bm277
    Redshift → {'unit': '1', 'amount': '+0.03604'}
    Radial velocity → {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount'
    Wikidata description → galaxy
    + 15 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-references:1||1|2 */ [[Property:P4095]]: 44495, Rescuing 1 sources and submitting 0 for archiving. #IABot (v2.0.9.5)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.