The Mempa system was located in the Mempa sector, in the vicinity of Beta Lankal and Rura Penthe. This system's orbit was the location of a number of planets, at least nine. Mempa was a binary star consisting of a type G yellow primary and a secondary type K orange star. (ST reference: Star Charts)
Several key battles of the Klingon Civil War were fought in the Mempa system, where Gowron's forces—including those lead by Martok—suffered a major defeat. (TNG episode: "Redemption"; DS9 episode: "Apocalypse Rising")
|Pi Canis sector block|
|Hromi Cluster (Gamma Hromi, Gamma Hromi II)|
|Hromi sector||Gateway (Alpha Zeta, UFC 465537) system (Gateway) • JFS47 system • Kalferi system (Kalferi II) • Korvat system (Korvat) • Maiewski system (Maiewski Prime) • Veyga (Eta Veyga) system (Veyga IV)|
|Mempa sector||Beta Thoridor system (Beta Thoridor planet) • Ceron system • Da'Kel system (Da'Kel I • Da'Kel II, Gion • Da'Kel III) • Eriksson system • H'atoria system (H'atoria) • Lilitu system • Mempa system (Mempa II • Mempa IV • Mempa V • Mempa VII • Mempa VIII • Mempa IX) • M'rade system • Vesper system (Vesper II) • Vor system (Vor II)|
|Xarantine sector||Danteri system (Danter) • Honod system • Kern system (Kern III) • Laurentian system • Seedea system • Trimble system (Trimble) • Xarantine system (Xarantine VI)|
- TNG episode: "Redemption"
- DS9 episode: "Apocalypse Rising"
- ST reference: Star Charts
- DS9 novel: Warpath
- ST reference: Stellar Cartography: The Starfleet Reference Library