Tau Cygni

variable star in the constellation Cygnus
Place multiple_star Q3231819
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Tau Cygni

Summary

Tau Cygni is a multiple star[1]. It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • Tau Cygni's instance of is recorded as multiple star[3].
  • Tau Cygni's instance of is recorded as high proper-motion star[4].
  • Tau Cygni's instance of is recorded as Delta Scuti variable[5].
  • Tau Cygni's instance of is recorded as infrared source[6].
  • Tau Cygni's instance of is recorded as near-infrared source[7].
  • Tau Cygni's instance of is recorded as ultraviolet source[8].
  • Tau Cygni's instance of is recorded as variable star[9].
  • Tau Cygni's instance of is recorded as astrophysical X-ray source[10].
  • Tau Cygni's instance of is recorded as star[11].
  • Tau Cygni's constellation is recorded as Cygnus[12].
  • Tau Cygni's spectral class is recorded as F0IV[13].
  • Tau Cygni's spectral class is recorded as F2+ V[14].
  • Tau Cygni's companion of is recorded as UCAC3 257-235378[15].
  • Tau Cygni's companion of is recorded as Q73982744[16].
  • Tau Cygni's companion of is recorded as BD+37 4237[17].
  • Tau Cygni's companion of is recorded as Q73985449[18].
  • Tau Cygni's companion of is recorded as tau Cyg B[19].
  • Tau Cygni comprises tau Cyg B[20].
  • Tau Cygni's catalog code is recorded as ADS 14787 A[21].
  • Tau Cygni's catalog code is recorded as CCDM J21148+3803A[22].
  • Tau Cygni's catalog code is recorded as GJ 9728 A[23].
  • Tau Cygni's catalog code is recorded as GJ 822.1 A[24].
  • Tau Cygni's catalog code is recorded as IDS 21108+3737 A[25].
  • Tau Cygni's catalog code is recorded as UBV 21456[26].
  • Tau Cygni's catalog code is recorded as WDS J21148+3803A[27].

Body

Designation and Status

Recorded instance of include multiple star[3], high proper-motion star[4], Delta Scuti variable[5], infrared source[6], near-infrared source[7], and ultraviolet source[8].

History and Context

Catalog codes include ADS 14787 A[21], CCDM J21148+3803A[22], GJ 9728 A[23], GJ 822.1 A[24], IDS 21108+3737 A[25], and UBV 21456[26].

Why It Matters

Tau Cygni has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[2] It is known by 32 alternative names across languages and contexts.[28]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . SIMBAD. wikidata.org.
  3. [5] . SIMBAD. 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] . wikidata.org.
  11. [13] . MK classification for visual binary components. wikidata.org.
  12. [14] . Q53997770. wikidata.org.
  13. [15] . Washington Double Star Catalog. wikidata.org.
  14. [16] . Washington Double Star Catalog. wikidata.org.
  15. [17] . Washington Double Star Catalog. wikidata.org.
  16. [18] . Washington Double Star Catalog. wikidata.org.
  17. [19] . Washington Double Star Catalog. wikidata.org.
  18. [20] . Washington Double Star Catalog. wikidata.org.
  19. [21] . SIMBAD. wikidata.org.
  20. [22] . SIMBAD. 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.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikidata sitelinks. wikidata.org.
  2. [28] . 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). Tau Cygni. Retrieved May 3, 2026, from https://4ort.xyz/entity/tau-cygni
MLA “Tau Cygni.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/tau-cygni.
BibTeX @misc{4ortxyz_tau-cygni_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Tau Cygni}}, year = {2026}, url = {https://4ort.xyz/entity/tau-cygni}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Tau Cygni — https://4ort.xyz/entity/tau-cygni (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. 6w ago · 惑星矮星 · 2026-06-12 view diff on Wikidata ↗
    Has part(s) tau Cyg B
    Right ascension {'unit': 'Q28390', 'amount': '+318.697885511'}, {'unit': 'Q28390', 'amount': '+318.69792981584294'}
    Constellation Cygnus
    Apparent magnitude {'amount': '+4.23'}, {'amount': '+3.83'}, {'amount': '+3.5696'} +9
    + 18 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1 */ [[Property:P31]]: [[Q878367]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.