HD 198716

HD 198716 is a G-type main-sequence star located approximately 123 light-years away in the constellation Capricornus. It is similar to our Sun in terms of spectral type (G3V) and mass, though it is slightly more massive and luminous. The star is notable for hosting a confirmed exoplanet, HD 198716 b.

HD 198716 b is a hot Jupiter, a type of exoplanet characterized by its large size and proximity to its host star. It was discovered using the radial velocity method, which detects changes in a star's velocity caused by the gravitational pull of an orbiting planet. The planet has a mass of approximately 0.6 times the mass of Jupiter and orbits HD 198716 with a period of about 19 days at a very close distance.

Due to the planet's proximity to the star, HD 198716 b experiences extremely high temperatures. The system is of interest to astronomers studying the formation and evolution of hot Jupiters and planetary systems in general. Further observations and studies are being conducted to understand the characteristics of both the star and its planet in greater detail.