Cardassian system

The Cardassian system was an inhabited planetary system located in the Cardassian sector. This sector was a region of space in the Alpha Quadrant.

The system consisted of a primary and five named planets. Cardassia Prime (Cardassia II) was the inhabited homeworld of the Cardassians, a warp capable species. This planet was also the capital of the Cardassian Union. The system also included Cardassia I, and the planets Cardassia III, Cardassia IV, and Cardassia V that were colonized by the Cardassians. 

In 2375, the Dominion began their withdrawal to Cardassia Prime during the waning days of the Dominion War. The Allied Forces planned a risky and costly military operation to end the war by penetrating the system and engaging the Dominion forces stationed in orbit of Cardassia Prime. 

Background information
"Tactical Display 7624N" was reproduced in legible detail in the Star Trek: Star Charts reference book, on page 49.

According to this same book (pgs. 36, 42-43), the primary in the system was named Cardassia. Cardassia was a K class star with a magnitude of -1, which was a hundred times brighter than Sol. There were a total of eight planets in the system, four of which were inhabited, and two asteroid belts. The system was visited by a Bajoran solar-sail vessel in 1571. Distance between Bajor and Cardassia was 5.25 light years.

Apocrypha
According to the RPG book Star Trek: Deep Space Nine - Narrator's Toolkit, the Cardassian sun was a bright red dwarf (M2 V type), the first two planets were class F, Cardassia Prime was the third planet in the system, Cardassia VI and VII were class J gas giants and Cardassia VIII was class G.

Cardassianisches System Système de Cardassia カーデシア星系 Cardassia systeem Kardasjański system