HD 209458 b | Vibepedia

HD 209458 b is a gas giant exoplanet located approximately 150 light-years from Earth in the constellation Pegasus, discovered in 1999 by a team of astronomers using the radial velocity method. This exoplanet is notable for being one of the first to be observed transiting its host star, providing valuable insights into its composition and atmosphere. The discovery of HD 209458 b has been instrumental in advancing our understanding of exoplanetary science, with researchers like Dr. Sara Seager and Dr. Michel Mayor contributing significantly to the field.