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HD 74156 d

extrasolar planet
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HD 74156 d

Summary

HD 74156 d is an unconfirmed exoplanet[1].

Key Facts

  • HD 74156 d's instance of is recorded as unconfirmed exoplanet[2].
  • HD 74156 d's constellation is recorded as Hydra[3].
  • HD 74156 d's parent astronomical body is recorded as HD 74156[4].
  • HD 74156 d's catalog code is recorded as HD 74156d[5].
  • HD 74156 d's time of discovery or invention is recorded as +2007-00-00T00:00:00Z[6].
  • HD 74156 d's discovery method is recorded as Doppler spectroscopy[7].
  • HD 74156 d's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.25'}[8].
  • HD 74156 d's mass is recorded as {'unit': 'http://www.wikidata.org/entity/Q651336', 'amount': '+0.396'}[9].
  • HD 74156 d's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+336.6'}[10].
  • HD 74156 d's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+17.3315'}[11].
  • HD 74156 d's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.01'}[12].
  • HD 74156 d's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+166.5'}[13].
  • HD 74156 d's Google Knowledge Graph ID is recorded as /g/1230_8r5[14].
  • HD 74156 d's SIMBAD ID is recorded as HD 74156d[15].
  • HD 74156 d's Wolfram Language entity code is recorded as Entity["Exoplanet", "HD74156d"][16].
  • HD 74156 d's Extrasolar Planets Encyclopaedia exoplanet ID is recorded as hd_74156_d--418[17].
  • HD 74156 d's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+130.60467560221664'}[18].
  • HD 74156 d's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+4.57809621994861'}[19].
  • HD 74156 d's epoch is recorded as J2000.0[20].
  • HD 74156 d's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-200.293'}[21].
  • HD 74156 d's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+24.474'}[22].
  • HD 74156 d's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+678.2'}[23].

Body

Designation and Status

HD 74156 d's instance of is recorded as unconfirmed exoplanet[2].

History and Context

HD 74156 d's catalog code is recorded as HD 74156d[5].

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] ↑ . Extrasolar Planets Encyclopaedia. wikidata.org.
  6. [7] ↑ . Detection of a Third Planet in the HD 74156 System Using the Hobby‐Eberly Telescope. wikidata.org.
  7. [8] ↑ . Detection of a Third Planet in the HD 74156 System Using the Hobby‐Eberly Telescope. wikidata.org.
  8. [9] ↑ . Detection of a Third Planet in the HD 74156 System Using the Hobby‐Eberly Telescope. wikidata.org.
  9. [10] ↑ . Detection of a Third Planet in the HD 74156 System Using the Hobby‐Eberly Telescope. wikidata.org.
  10. [11] ↑ . Gaia Data Release 2. wikidata.org.
  11. [12] ↑ . Detection of a Third Planet in the HD 74156 System Using the Hobby‐Eberly Telescope. wikidata.org.
  12. [13] ↑ . Detection of a Third Planet in the HD 74156 System Using the Hobby‐Eberly Telescope. wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . 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.
  22. [23] ↑ . Detection of a Third Planet in the HD 74156 System Using the Hobby‐Eberly Telescope. 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 74156 d. Retrieved May 3, 2026, from https://4ort.xyz/entity/hd-74156-d
MLA “HD 74156 d.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hd-74156-d.
BibTeX @misc{4ortxyz_hd-74156-d_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{HD 74156 d}}, year = {2026}, url = {https://4ort.xyz/entity/hd-74156-d}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): HD 74156 d — https://4ort.xyz/entity/hd-74156-d (retrieved 2026-05-03)

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