Gliese 3021
GJ 3021 (2 G. Hydri) is a binary star system approximately 57 light-years away in the constellation of Hydrus (the Water Snake).
The visible star in the system, A, is considered to be a Solar twin. As of 2000, it has been confirmed that an extrasolar planet orbits the star. It is of note for being a relatively Sun-like star not very far from the Sun that is home to an extrasolar planet.
Read more about Gliese 3021: Stellar Components, Planetary System