Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. HD 149026 is a yellow subgiant star approximately 257 light-years away in the constellation of Hercules. The star is thought to be much more massive, larger, and brighter than the Sun. As of 2005, an extrasolar planet has been confirmed to be orbiting the star. The name of this star comes from its identifier in the Henry Draper Catalog. The star is thought to be much more massive, larger, and brighter than the Sun. The higher mass of the star causes that despite considerably younger age it is already much more evolved than the Sun.