YZ Ceti d

extrasolar planet
Place exoplanet Q93231767
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YZ Ceti d

Summary

YZ Ceti d is an exoplanet[1].

Key Facts

  • YZ Ceti d's instance of is recorded as exoplanet[2].
  • YZ Ceti d's constellation is recorded as Cetus[3].
  • YZ Ceti d's parent astronomical body is recorded as YZ Ceti[4].
  • YZ Ceti d's catalog code is recorded as YZ Cet d[5].
  • YZ Ceti d's catalog code is recorded as GJ 54.1 d[6].
  • YZ Ceti d's catalog code is recorded as TIC 439403362d[7].
  • YZ Ceti d's time of discovery or invention is recorded as +2017-09-00T00:00:00Z[8].
  • YZ Ceti d's discovery method is recorded as Doppler spectroscopy[9].
  • YZ Ceti d's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.07'}[10].
  • YZ Ceti d's M sin i is recorded as {'unit': 'http://www.wikidata.org/entity/Q681996', 'amount': '+1.09'}[11].
  • YZ Ceti d's mass is recorded as {'unit': 'http://www.wikidata.org/entity/Q651336', 'amount': '+0.00343'}[12].
  • YZ Ceti d's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+4.65626'}[13].
  • YZ Ceti d's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+269.3628'}[14].
  • YZ Ceti d's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+0.02851'}[15].
  • YZ Ceti d's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+200'}[16].
  • YZ Ceti d's SIMBAD ID is recorded as NAME YZ Cet d[17].
  • YZ Ceti d's Extrasolar Planets Encyclopaedia exoplanet ID is recorded as yz_cet_d--6605[18].
  • YZ Ceti d's NASA Exoplanet Archive ID is recorded as YZ Cet d[19].
  • YZ Ceti d's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+18.12765322556667'}[20].
  • YZ Ceti d's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-16.99898925380278'}[21].
  • YZ Ceti d's epoch is recorded as J2000.0[22].
  • YZ Ceti d's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+637.758'}[23].
  • YZ Ceti d's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+1205.176'}[24].

Body

Designation and Status

YZ Ceti d's instance of is recorded as exoplanet[2].

History and Context

Catalog codes include YZ Cet d[5], GJ 54.1 d[6], and TIC 439403362d[7].

References

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

Direct Wikidata claims

  1. [2] ↑ . SIMBAD. wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . SIMBAD. wikidata.org.
  4. [5] ↑ . SIMBAD. wikidata.org.
  5. [6] ↑ . SIMBAD. wikidata.org.
  6. [7] ↑ . Exoplanet Archive. wikidata.org.
  7. [8] ↑ . The HARPS search for southern extra-solar planets. XLII. A system of Earth-mass planets around the nearby M dwarf YZ Ceti. wikidata.org.
  8. [9] ↑ . The HARPS search for southern extra-solar planets. XLII. A system of Earth-mass planets around the nearby M dwarf YZ Ceti. wikidata.org.
  9. [10] ↑ . The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti. wikidata.org.
  10. [11] ↑ . The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti. wikidata.org.
  11. [12] ↑ . Extrasolar Planets Encyclopaedia. wikidata.org.
  12. [13] ↑ . The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti. wikidata.org.
  13. [14] ↑ . Gaia Data Release 2. wikidata.org.
  14. [15] ↑ . The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti. wikidata.org.
  15. [16] ↑ . The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti. wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . Gaia Data Release 2. wikidata.org.
  20. [21] ↑ . Gaia Data Release 2. wikidata.org.
  21. [22] ↑ . SIMBAD. wikidata.org.
  22. [23] ↑ . Gaia Data Release 2. wikidata.org.
  23. [24] ↑ . Gaia Data Release 2. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). YZ Ceti d. Retrieved October 2, 2026, from https://4ort.xyz/entity/yz-ceti-d
MLA “YZ Ceti d.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Oct. 2026, https://4ort.xyz/entity/yz-ceti-d.
BibTeX @misc{4ortxyz_yz-ceti-d_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{YZ Ceti d}}, year = {2026}, url = {https://4ort.xyz/entity/yz-ceti-d}, note = {Accessed: 2026-10-02}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): YZ Ceti d — https://4ort.xyz/entity/yz-ceti-d (retrieved 2026-10-02)

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