HD 209458 b

Summary

HD 209458 b is an exoplanet^[1]. It ranks in the top 3% of exoplanet entities by monthly Wikipedia readership (239 views/month).^[2]

Key Facts

• HD 209458 b is credited with the discovery of Michel Mayor^[3].
• HD 209458 b is credited with the discovery of David Charbonneau^[4].
• HD 209458 b's image is recorded as Osirisplanet.jpg^[5].
• HD 209458 b's instance of is recorded as exoplanet^[6].
• HD 209458 b's constellation is recorded as Pegasus^[7].
• HD 209458 b's Commons category is recorded as HD 209458 b^[8].
• HD 209458 b's parent astronomical body is recorded as V376 Pegasi^[9].
• HD 209458 b's catalog code is recorded as HD 209458b^[10].
• HD 209458 b's catalog code is recorded as TOI-5972.01^[11].
• HD 209458 b's catalog code is recorded as TOI-5972b^[12].
• HD 209458 b's catalog code is recorded as TIC 420814525b^[13].
• HD 209458 b's time of discovery or invention is recorded as +1999-11-05T00:00:00Z^[14].
• HD 209458 b's time of discovery or invention is recorded as +2000-01-00T00:00:00Z^[15].
• HD 209458 b's Freebase ID is recorded as /m/02bfd3^[16].
• HD 209458 b's discovery method is recorded as Doppler spectroscopy^[17].
• HD 209458 b's orbital eccentricity is recorded as {'amount': '+0.01'}^[18].
• HD 209458 b's Encyclopædia Britannica Online ID is recorded as topic/HD-209458b^[19].
• HD 209458 b's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+86.71'}^[20].
• HD 209458 b's M sin i is recorded as {'unit': 'Q651336', 'amount': '+0.665'}^[21].
• HD 209458 b's mass is recorded as {'unit': 'Q651336', 'amount': '+0.682'}^[22].
• HD 209458 b's radius is recorded as {'unit': 'Q3421309', 'amount': '+0.82'}^[23].
• HD 209458 b's orbital period is recorded as {'unit': 'Q573', 'amount': '+3.52474955'}^[24].
• HD 209458 b's parallax is recorded as {'unit': 'Q21500224', 'amount': '+20.6745'}^[25].
• HD 209458 b's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+0.04634'}^[26].
• HD 209458 b's argument of periapsis is recorded as {'unit': 'Q28390', 'amount': '+0'}^[27].

Body

Designation and Status

HD 209458 b's instance of is recorded as exoplanet^[6].

History and Context

Catalog codes include HD 209458b^[10], TOI-5972.01^[11], TOI-5972b^[12], and TIC 420814525b^[13].

Why It Matters

HD 209458 b ranks in the top 3% of exoplanet entities by monthly Wikipedia readership (239 views/month).^[2] It has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.^[28] It is known by 28 alternative names across languages and contexts.^[29]