Porathia system
Porathia was a binary star system in the Alpha Quadrant. The ocean planet Porathia was located in this system.

In the 2250s, the  engaged rebels in the asteroid field of this system. During this mission, this Discovery and the prime  swapped places. The latter ship later rendezvoused with the  in this field, during which Michael Burnham, , and  were transported over to the Shenzhou.  ()

In 2259, the location of this system was labeled on a stellar cartography chart that was seen on the 's ready room viewscreen. This system's symbol had a blue color, indicating that it was affiliated with the . () 

In 2399, the location of Porathia in neutral space was labeled in a Federation star chart that was in Fleet Admiral Kirsten Clancy's office at Starfleet Headquarters.  () 

In 3189, the location of Porathia was denoted on a holographic star chart of the galaxy at Federation Headquarters. ()

In 3190, this system was located outside Federation territory. ()

Mirror universe
Star systems