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

HD 15082 (also known as WASP-33) is a star located roughly 397 light years away [2] in the northern constellation of Andromeda. [10] The star is a Delta Scuti variable [11] and a planetary transit variable. 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 ...

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.

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。 它创造了许多宇宙之最，温度比 WASP-12b 高900℃，大小是 木星 的1.5倍。 [1] Wasp-33b的轨道周期非常短，每1.22天就能完成一次公转，轨道半径仅为日地距离的百分之三。 [2] 系外行星Wasp-33b的防晒层大气结构拥有一个高度较高的平流层分 …

WASP-33 forms a triple system with an M dwarf and a G dwarf companion star located 238 and 5955 AUs away respectively.

The WASP-33 system now represents a new benchmark in the world of exoplanets that can provide valuable information on stellar pulsations (through, e.g., transit surface mapping), on the tidal interactions between planets and stars, and on the dynamical evolution of planetary systems.

This page summarises the information held within TEPCat for the transiting planetary system WASP-33. Please see here for descriptions of the quantities given below. Discovery and basic observable quantities:

The planetary system WASP-33 hosts at least one planet. This list shows all planetary and stellar components in the system. It gives a quick overview of the hierarchical architecture. This table lists all planets in the system WASP-33. This planet was discovered by Collier Cameron et al. 2010. This was a ground based discovery.

These findings make WASP-33 the first transiting exoplanet host star with δ Sct variability and a very interesting candidate to search for star-planet interactions. Key words.