Q81651561

unconfirmed exoplanet in the constellation Octans
Thing exoplanet Q81651561
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Q81651561

Summary

Q81651561 is an exoplanet[1].

Key Facts

  • Q81651561's instance of is recorded as exoplanet[2].
  • Q81651561's constellation is recorded as Octans[3].
  • Q81651561's parent astronomical body is recorded as Q67858841[4].
  • Q81651561's companion of is recorded as Q67858841[5].
  • Q81651561's catalog code is recorded as HD 189310b[6].
  • Q81651561's time of discovery or invention is recorded as +2011-00-00T00:00:00Z[7].
  • Q81651561's discovery method is recorded as Doppler spectroscopy[8].
  • Q81651561's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.359'}[9].
  • Q81651561's M sin i is recorded as {'unit': 'http://www.wikidata.org/entity/Q651336', 'amount': '+25.6'}[10].
  • Q81651561's mass is recorded as {'unit': 'http://www.wikidata.org/entity/Q651336', 'amount': '+25.6'}[11].
  • Q81651561's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+14.18643'}[12].
  • Q81651561's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+31.2452'}[13].
  • Q81651561's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+0.109'}[14].
  • Q81651561's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+50.1'}[15].
  • Q81651561's SIMBAD ID is recorded as HD 189310b[16].
  • Q81651561's Extrasolar Planets Encyclopaedia exoplanet ID is recorded as hd_189310_b--6909[17].
  • Q81651561's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+303.31845627953910'}[18].
  • Q81651561's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-82.02814695169805'}[19].
  • Q81651561's epoch is recorded as J2000.0[20].
  • Q81651561's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-18.252'}[21].
  • Q81651561's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+85.531'}[22].

References

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

Direct Wikidata claims

  1. [2] . Extrasolar Planets Encyclopaedia. wikidata.org.
  2. [3] . wikidata.org.
  3. [4] . The SOPHIE search for northern extrasolar planets. IX. Populating the brown dwarf desert. wikidata.org.
  4. [5] . wikidata.org.
  5. [6] . SIMBAD. wikidata.org.
  6. [7] . Extrasolar Planets Encyclopaedia. wikidata.org.
  7. [8] . Extrasolar Planets Encyclopaedia. wikidata.org.
  8. [9] . Search for brown-dwarf companions of stars. wikidata.org.
  9. [10] . Search for brown-dwarf companions of stars. wikidata.org.
  10. [11] . Extrasolar Planets Encyclopaedia. wikidata.org.
  11. [12] . Search for brown-dwarf companions of stars. wikidata.org.
  12. [13] . Gaia Data Release 2. wikidata.org.
  13. [14] . Search for brown-dwarf companions of stars. wikidata.org.
  14. [15] . Search for brown-dwarf companions of stars. wikidata.org.
  15. [16] . wikidata.org.
  16. [17] . wikidata.org.
  17. [18] . Gaia Data Release 2. wikidata.org.
  18. [19] . Gaia Data Release 2. wikidata.org.
  19. [20] . SIMBAD. wikidata.org.
  20. [21] . Gaia Data Release 2. wikidata.org.
  21. [22] . Gaia Data Release 2. wikidata.org.

Class ancestry

  1. [1] . Wikidata. 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). Q81651561. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81651561
MLA “Q81651561.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81651561.
BibTeX @misc{4ortxyz_q81651561_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81651561}}, year = {2026}, url = {https://4ort.xyz/entity/q81651561}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81651561 — https://4ort.xyz/entity/q81651561 (retrieved 2026-05-07)

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