Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. HD 9578 is a star located approximately 187 light-years away in the constellation of Sculptor. It is a Sun-like star that in 2009 has been found to host an extrasolar planet. HD 9578 b is an extrasolar planet with at least 0.62 times the mass of Jupiter. It takes 494 days to orbit the star, with an orbital semimajor axis of 1.27 AU. The discovery was announced in a press release in October 2009, but no discovery paper has yet been made available.