Omicron lost - its suns are not too powerful, fly a bit away and you will fell in the darkness' hugs. The place, where you can simply dissolve and disappear. Dark side of lost's planet looks like the last outpost of the galaxy. Truely the Lost system, truely the end system... The place, where the end edge of Sirius feels at most.
Omicron gamma - a desert, dried with radiation, solar'ed desert. You barely feel that infra red rays out there. Feels like Mexico.
