CoRoT-17b

CoRoT-17b is a gas giant exoplanet that orbits the star CoRoT-17, located in the constellation Scutum. It was discovered in 2011 by the CoRoT space telescope using the transit method, where the planet's passage in front of its host star causes a slight dimming of the star's light.

CoRoT-17b is a hot Jupiter, meaning it is a gas giant with a high surface temperature due to its close proximity to its star. It has a mass of approximately 2.43 times that of Jupiter and a radius of about 1.02 times Jupiter's radius. Its orbital period is relatively short, at about 3.77 days, and it orbits its star at a distance of approximately 0.05 astronomical units (AU).

The planet's density is significantly higher than that of Jupiter. This suggests that CoRoT-17b has a relatively large core comprised of heavy elements, or that it is highly compressed by its own gravity, a common characteristic of massive exoplanets close to their stars. The star CoRoT-17 is a G-type star, slightly more massive and hotter than our Sun. The discovery of CoRoT-17b contributed to the growing understanding of the diversity of exoplanetary systems and the formation and evolution of hot Jupiters.