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HD 4747 B

brown dwarf in the constellation Cetus
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HD 4747 B

Summary

HD 4747 B is an unconfirmed exoplanet[1].

Key Facts

  • HD 4747 B's instance of is recorded as unconfirmed exoplanet[2].
  • HD 4747 B's instance of is recorded as brown dwarf[3].
  • HD 4747 B's constellation is recorded as Cetus[4].
  • HD 4747 B's parent astronomical body is recorded as Q14914819[5].
  • HD 4747 B's catalog code is recorded as HD 4747b[6].
  • HD 4747 B's time of discovery or invention is recorded as +2016-00-00T00:00:00Z[7].
  • HD 4747 B's discovery method is recorded as Doppler spectroscopy[8].
  • HD 4747 B's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.732'}[9].
  • HD 4747 B's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+50'}[10].
  • HD 4747 B's M sin i is recorded as {'unit': 'http://www.wikidata.org/entity/Q651336', 'amount': '+54.81'}[11].
  • HD 4747 B's mass is recorded as {'unit': 'http://www.wikidata.org/entity/Q651336', 'amount': '+70.5'}[12].
  • HD 4747 B's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+12196'}[13].
  • HD 4747 B's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+53.1836'}[14].
  • HD 4747 B's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+10.6'}[15].
  • HD 4747 B's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+266.93'}[16].
  • HD 4747 B's Google Knowledge Graph ID is recorded as /g/11cmrsvds6[17].
  • HD 4747 B's Extrasolar Planets Encyclopaedia exoplanet ID is recorded as hd_4747_b--4033[18].
  • HD 4747 B's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+12.36150504747667'}[19].
  • HD 4747 B's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-23.21246270946417'}[20].
  • HD 4747 B's epoch is recorded as J2000.0[21].
  • HD 4747 B's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+123.849'}[22].
  • HD 4747 B's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+518.372'}[23].

Body

Designation and Status

Recorded instance of include unconfirmed exoplanet[2] and brown dwarf[3].

History and Context

HD 4747 B's catalog code is recorded as HD 4747b[6].

References

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

Direct Wikidata claims

  1. [2] ↑ . SIMBAD. wikidata.org.
  2. [3] ↑ . The CORALIE survey for southern extrasolar planets XIX. Brown dwarfs and stellar companions unveiled by radial velocity and astrometry. wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . The SOPHIE search for northern extrasolar planets. IX. Populating the brown dwarf desert. wikidata.org.
  5. [6] ↑ . SIMBAD. wikidata.org.
  6. [7] ↑ . Extrasolar Planets Encyclopaedia. wikidata.org.
  7. [8] ↑ . Extrasolar Planets Encyclopaedia. wikidata.org.
  8. [9] ↑ . The CORALIE survey for southern extrasolar planets XIX. Brown dwarfs and stellar companions unveiled by radial velocity and astrometry. wikidata.org.
  9. [10] ↑ . Evidence for a high mutual inclination between the cold Jupiter and transiting super Earth orbiting π Men. wikidata.org.
  10. [11] ↑ . The CORALIE survey for southern extrasolar planets XIX. Brown dwarfs and stellar companions unveiled by radial velocity and astrometry. wikidata.org.
  11. [12] ↑ . The CORALIE survey for southern extrasolar planets XIX. Brown dwarfs and stellar companions unveiled by radial velocity and astrometry. wikidata.org.
  12. [13] ↑ . The CORALIE survey for southern extrasolar planets XIX. Brown dwarfs and stellar companions unveiled by radial velocity and astrometry. wikidata.org.
  13. [14] ↑ . Gaia Data Release 2. wikidata.org.
  14. [15] ↑ . The TRENDS high-contrast imaging survey. VI. Discovery of a mass, age, and metallicity benchmark brown dwarf. wikidata.org.
  15. [16] ↑ . Evidence for a high mutual inclination between the cold Jupiter and transiting super Earth orbiting π Men. wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . Gaia Data Release 2. wikidata.org.
  19. [20] ↑ . Gaia Data Release 2. wikidata.org.
  20. [21] ↑ . SIMBAD. wikidata.org.
  21. [22] ↑ . Gaia Data Release 2. wikidata.org.
  22. [23] ↑ . 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). HD 4747 B. Retrieved May 3, 2026, from https://4ort.xyz/entity/hd-4747-b
MLA “HD 4747 B.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hd-4747-b.
BibTeX @misc{4ortxyz_hd-4747-b_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{HD 4747 B}}, year = {2026}, url = {https://4ort.xyz/entity/hd-4747-b}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): HD 4747 B — https://4ort.xyz/entity/hd-4747-b (retrieved 2026-05-03)

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