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YZ Ceti b

extrasolar planet
Place exoplanet Q93231691

Facts

19 properties

Identity

Instance of
exoplanet
More facts +18
Argument of periapsis
197 degree[15]
Catalog code
YZ Cet b, GJ 54.1 b, TIC 439403362b[4][5][6]
Constellation
Cetus[2]
Declination
-16.99898925380278 degree[17]
Declination component of proper motion
637.758 milliarcsecond per year[19]
Discovery method
Doppler spectroscopy[8]
Epoch
J2000.0[18]
Imported from
wholeness_audit_2026-05-02
M sin i
0.7 Earth mass[10]
Mass
0.0022 Jupiter mass[11]
Orbital eccentricity
0.06[9]
Orbital period
2.02087 day[12]
Parallax
269.3628 milliarcsecond[13]
Parent astronomical body
YZ Ceti[3]
Right ascension
18.12765322556667 degree[16]
Right ascension component of proper motion
1,205.176 milliarcsecond per year[20]
Semi-major axis of an orbit
0.01634 astronomical unit[14]
Time of discovery or invention
September 2017[7]
🏷️ Also known as
en NAME YZ Cet b en TIC 439403362b en YZ Cet b en YZ Ceti b
🔖 Identifiers · 3
Extrasolar Planets Encyclopaedia exoplanet ID
yz_cet_b--6603
NASA Exoplanet Archive ID
YZ Cet b
SIMBAD ID
NAME YZ Cet b

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Summary

YZ Ceti b is an exoplanet[1].

References

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

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . SIMBAD. wikidata.org.
  3. [4] ↑ . SIMBAD. wikidata.org.
  4. [5] ↑ . SIMBAD. wikidata.org.
  5. [6] ↑ . Exoplanet Archive. wikidata.org.
  6. [7] ↑ . The HARPS search for southern extra-solar planets. XLII. A system of Earth-mass planets around the nearby M dwarf YZ Ceti. 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 CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system 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] ↑ . Extrasolar Planets Encyclopaedia. wikidata.org.
  11. [12] ↑ . The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti. wikidata.org.
  12. [13] ↑ . Gaia Data Release 2. wikidata.org.
  13. [14] ↑ . The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti. 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] ↑ . Gaia Data Release 2. wikidata.org.
  16. [17] ↑ . Gaia Data Release 2. wikidata.org.
  17. [18] ↑ . SIMBAD. wikidata.org.
  18. [19] ↑ . Gaia Data Release 2. wikidata.org.
  19. [20] ↑ . 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). YZ Ceti b. Retrieved November 7, 2026, from https://4ort.xyz/entity/yz-ceti-b
MLA “YZ Ceti b.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 Nov. 2026, https://4ort.xyz/entity/yz-ceti-b.
BibTeX @misc{4ortxyz_yz-ceti-b_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{YZ Ceti b}}, year = {2026}, url = {https://4ort.xyz/entity/yz-ceti-b}, note = {Accessed: 2026-11-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): YZ Ceti b — https://4ort.xyz/entity/yz-ceti-b (retrieved 2026-11-07)

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