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HAT-P-66 b

exoplanet in the constellation Ursa Major
Place exoplanet Q110102116
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HAT-P-66 b

Summary

HAT-P-66 b is an exoplanet[1].

Key Facts

  • HAT-P-66 b's instance of is recorded as exoplanet[2].
  • HAT-P-66 b's constellation is recorded as Ursa Major[3].
  • HAT-P-66 b's parent astronomical body is recorded as HAT-P-66[4].
  • HAT-P-66 b's catalog code is recorded as TOI-1781.01[5].
  • HAT-P-66 b's catalog code is recorded as TIC 137881699b[6].
  • HAT-P-66 b's time of discovery or invention is recorded as +2016-12-00T00:00:00Z[7].
  • HAT-P-66 b's discovery method is recorded as transit method[8].
  • HAT-P-66 b's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.09'}[9].
  • HAT-P-66 b's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+86.2'}[10].
  • HAT-P-66 b's mass is recorded as {'unit': 'http://www.wikidata.org/entity/Q651336', 'amount': '+0.783'}[11].
  • HAT-P-66 b's radius is recorded as {'unit': 'http://www.wikidata.org/entity/Q3421309', 'amount': '+1.59'}[12].
  • HAT-P-66 b's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+2.972089'}[13].
  • HAT-P-66 b's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.0396'}[14].
  • HAT-P-66 b's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+0.04363'}[15].
  • HAT-P-66 b's SIMBAD ID is recorded as HAT-P-66b[16].
  • HAT-P-66 b's Extrasolar Planets Encyclopaedia exoplanet ID is recorded as hat_p_66_b--4057[17].
  • HAT-P-66 b's NASA Exoplanet Archive ID is recorded as HAT-P-66 b[18].
  • HAT-P-66 b's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+150.57269480146456'}[19].
  • HAT-P-66 b's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+53.95088942166611'}[20].
  • HAT-P-66 b's epoch is recorded as J2000.0[21].
  • HAT-P-66 b's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-15.255'}[22].
  • HAT-P-66 b's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-9.381'}[23].

Body

Designation and Status

HAT-P-66 b's instance of is recorded as exoplanet[2].

History and Context

Catalog codes include TOI-1781.01[5] and TIC 137881699b[6].

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] ↑ . Exoplanet Archive. wikidata.org.
  5. [6] ↑ . Exoplanet Archive. wikidata.org.
  6. [7] ↑ . HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Reinflation of Close-in Giant Planets. wikidata.org.
  7. [8] ↑ . HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Reinflation of Close-in Giant Planets. wikidata.org.
  8. [9] ↑ . HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Reinflation of Close-in Giant Planets. wikidata.org.
  9. [10] ↑ . HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Reinflation of Close-in Giant Planets. wikidata.org.
  10. [11] ↑ . HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Reinflation of Close-in Giant Planets. wikidata.org.
  11. [12] ↑ . HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Reinflation of Close-in Giant Planets. wikidata.org.
  12. [13] ↑ . ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations. wikidata.org.
  13. [14] ↑ . Gaia Data Release 2. wikidata.org.
  14. [15] ↑ . HAT-P-65b and HAT-P-66b: Two Transiting Inflated Hot Jupiters and Observational Evidence for the Reinflation of Close-in Giant Planets. wikidata.org.
  15. [16] ↑ . 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.

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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). HAT-P-66 b. Retrieved May 3, 2026, from https://4ort.xyz/entity/hat-p-66-b
MLA “HAT-P-66 b.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hat-p-66-b.
BibTeX @misc{4ortxyz_hat-p-66-b_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{HAT-P-66 b}}, year = {2026}, url = {https://4ort.xyz/entity/hat-p-66-b}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): HAT-P-66 b — https://4ort.xyz/entity/hat-p-66-b (retrieved 2026-05-03)

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