Beta Thoridar was a star in Klingon space, in the Beta Quadrant. In 2256, this star's location was labeled on the star chart "Alpha/Beta Quadrant Overview" in the ready room aboard the USS Discovery. It was depicted as a Klingon star. (DIS: "Magic to Make the Sanest Man Go Mad") In late 2367, at the start of the Klingon Civil War, the House of Duras gathered a large fleet near this star while preparing to launch an offensive against Gowron's forces. (TNG: "Redemption" )