Mass shadow/Legends

A mass shadow is a type of stellar anomaly which prevents hyperspace jumps, and can pull ships out of hyperspace, should a ship venture too close. Mass shadows can occur naturally, caused by gravity wells such as a gas giants. There is one known case of an artificial mass shadow, created by Republic Leiutenant Bao-Dur on the planet Malachor V during the Mandalorian Wars under the Jedi general known as the "Jedi Exile."