WASP-33b is an extrasolar planet orbiting the star HD 15082. It was the first planet discovered to orbit a Delta Scuti variable star. With a semimajor axis of 0.026 AU (3.9 million km; 2.4 million mi) and a mass likely greater than Jupiter 's, [1] it belongs to the hot Jupiter class of planets.

2024年10月24日 · WASP-33 b is a gas giant exoplanet that orbits a A-type star. Its mass is 2.093 Jupiters, it takes 1.2 days to complete one orbit of its star, and is 0.0239 AU from its star. Its discovery was announced in 2010.

A gas-giant planet transiting a rapidly-rotating A5 star.

A hot Jupiter type extrasolar planet, named WASP-33b or HD 15082b, orbits this star with an orbital period of 1.22 days. It is the first Delta Scuti variable known to host a planet.

WASP-33b是目前发现的距离母恒星最近的行星，它距离母恒星的距离不到太阳和水星距离的7%，只有大约400万千米，它绕母恒星一圈只需要29小时，表面温度达到3200℃，是水星的7.62倍， 金星 的6.53倍， 地球 的128倍。

WASP-33 forms a triple system with an M dwarf and a G dwarf companion star located 238 and 5955 AUs away respectively. 2022 DHOLOKIA Sh., LUGER R. & DHOLAKIA Sh. ApJ. Letters , 910 , L9. Is TiO emission present in the ultra-hot Jupiter WASP-33b? A reassessment using the improved ExoMol Toto line list. The GAPS Programme with HARPS-N at TNG. XXXI.

WASP-33b is the hottest of the WASP planets, being the only one so far found orbiting a very hot A-type star. A team led by Korey Haynes from NASA’s Goddard Space Flight Center, have used Hubble to show that WASP-33b has a “stratosphere”.

2020年4月22日 · We present the detection and characterization of the full-orbit phase curve and secondary eclipse of the ultra-hot Jupiter WASP-33b at optical wavelengths, along with the pulsation spectrum of the host star. We analyzed data collected by the Transiting Exoplanet Survey Satellite (TESS) in sector 18.

2023年12月28日 · We report an attempt to detect molecular and atomic species in the atmosphere of the ultrahot Jupiter WASP-33b using the high-resolution echelle spectrograph NEID with a wavelength coverage of 380–930 nm.

2022年3月8日 · WASP-33b, a hot Jupiter (Rp = 1.5 RJ) around an A-type (Teff = 7430 ± 100 K) and rapidly rotating (V sin is = 85.6 km s −1) star, is the only planet whose precession has been detected by Doppler tomography based on transit spectral data.