WASP-7

WASP-7 is a yellow-white F-type main-sequence star located approximately 520 light-years away in the constellation of Vulpecula. It is slightly larger and more massive than the Sun. The star is notable for hosting an exoplanet, WASP-7b, discovered through the Wide Angle Search for Planets (WASP) project.

Stellar Characteristics:

WASP-7 has a spectral type of F5V. Its effective temperature is around 6250 K, making it hotter than the Sun. The star's mass is estimated to be about 1.28 times the mass of the Sun, and its radius is approximately 1.23 times the Sun's radius. WASP-7 exhibits a relatively high metallicity compared to the Sun, meaning it contains a higher proportion of elements heavier than hydrogen and helium.

Planetary System:

WASP-7 hosts a single known exoplanet, WASP-7b, a hot Jupiter.

WASP-7b:

WASP-7b is a gas giant exoplanet with a mass around 0.96 times the mass of Jupiter and a radius approximately 0.92 times Jupiter's radius. It orbits WASP-7 very closely, with an orbital period of only about 4.95 days. This close proximity to its host star results in extremely high temperatures in the planet's atmosphere. The planet was discovered using the transit method, where astronomers observed periodic dips in the star's brightness as the planet passed in front of it. The planet exhibits a relatively low density for a hot Jupiter. Further studies have focused on analyzing the planet's atmosphere and determining its composition.