Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Gliese 433 is a dim red dwarf star in the constellation of Hydra, roughly 29.5 light years away from Sun. Astronomers have announced the discovery of a very low-mass extrasolar planet in close orbit. Gliese 433 b is an extrasolar planet which orbits the star. This planet is a super-Earth with at least six times the mass of Earth and takes approximately seven days to orbit the star at a semimajor axis of approximately 0.056 AU. This planet was announced in a press release in October 2009, but no discovery paper has yet been made available.