Y Cephei

Mira variable star in the constellation Cepheus
Place mira_variable Q31888133
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Y Cephei

Summary

Y Cephei is a Mira variable[1].

Key Facts

  • Y Cephei's instance of is recorded as Mira variable[2].
  • Y Cephei's constellation is recorded as Cepheus[3].
  • Y Cephei's spectral class is recorded as M5e:[4].
  • Y Cephei's catalog code is recorded as GCRV 344[5].
  • Y Cephei's catalog code is recorded as HD 3344[6].
  • Y Cephei's catalog code is recorded as IRAS 00347+8004[7].
  • Y Cephei's catalog code is recorded as 2MASS J00382283+8021250[8].
  • Y Cephei's catalog code is recorded as WEB 540[9].
  • Y Cephei's catalog code is recorded as Gaia DR2 566402286789013888[10].
  • Y Cephei's catalog code is recorded as Y Cep[11].
  • Y Cephei's type of variable star is recorded as Mira variable[12].
  • Y Cephei's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.3'}[13].
  • Y Cephei's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.1772'}[14].
  • Y Cephei's apparent magnitude is recorded as {'unit': '1', 'amount': '+3.96'}[15].
  • Y Cephei's apparent magnitude is recorded as {'unit': '1', 'amount': '+3.116'}[16].
  • Y Cephei's apparent magnitude is recorded as {'unit': '1', 'amount': '+2.46'}[17].
  • Y Cephei's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.8238'}[18].
  • Y Cephei's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+0.0'}[19].
  • Y Cephei's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+0.0'}[20].
  • Y Cephei's SIMBAD ID is recorded as V* Y Cep[21].
  • Y Cephei's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.59534656031420'}[22].
  • Y Cephei's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+80.35693352639250'}[23].
  • Y Cephei's epoch is recorded as J2000.0[24].
  • Y Cephei's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-1.195'}[25].
  • Y Cephei's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+5.104'}[26].

Body

Designation and Status

Y Cephei's instance of is recorded as Mira variable[2].

History and Context

Catalog codes include GCRV 344[5], HD 3344[6], IRAS 00347+8004[7], 2MASS J00382283+8021250[8], WEB 540[9], and Gaia DR2 566402286789013888[10].

References

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

Direct Wikidata claims

  1. [2] . General Catalogue of Variable Stars. wikidata.org.
  2. [3] . wikidata.org.
  3. [4] . Catalogue of spectra of Mira variables of types Me and Se. wikidata.org.
  4. [5] . SIMBAD. wikidata.org.
  5. [6] . SIMBAD. wikidata.org.
  6. [7] . SIMBAD. wikidata.org.
  7. [8] . SIMBAD. wikidata.org.
  8. [9] . SIMBAD. wikidata.org.
  9. [10] . SIMBAD. wikidata.org.
  10. [11] . wikidata.org.
  11. [12] . Identifying red variables in the Northern Sky Variability Survey. wikidata.org.
  12. [13] . SIMBAD. wikidata.org.
  13. [14] . Gaia Data Release 2. wikidata.org.
  14. [15] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  15. [16] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  16. [17] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  17. [18] . Gaia Data Release 2. wikidata.org.
  18. [19] . General Catalogue of Stellar Radial Velocities. wikidata.org.
  19. [20] . Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue. wikidata.org.
  20. [21] . wikidata.org.
  21. [22] . Gaia Data Release 2. wikidata.org.
  22. [23] . Gaia Data Release 2. wikidata.org.
  23. [24] . Gaia Data Release 2. wikidata.org.
  24. [25] . Gaia Data Release 2. wikidata.org.
  25. [26] . Gaia Data Release 2. wikidata.org.

Class ancestry

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

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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). Y Cephei. Retrieved May 3, 2026, from https://4ort.xyz/entity/y-cephei
MLA “Y Cephei.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/y-cephei.
BibTeX @misc{4ortxyz_y-cephei_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Y Cephei}}, year = {2026}, url = {https://4ort.xyz/entity/y-cephei}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Y Cephei — https://4ort.xyz/entity/y-cephei (retrieved 2026-05-03)

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