An irregularly shaped giant molecular cloud located in Cleft Subsector and closely associated with the Cleft Group cluster of stars. It has general dimensions of 10 parsces coreward-rimward, 5 parsecs spinward-trailing, and covers an area of approximately 26 parsecs. The density and size of the cloud permits the formation of molecules such as molecular hydrogen (H2), carbon monoxide (CO) and ammonia (NH4). The Cloud's mean density is around 100,000 particles per cm³. It has an interior structure consisting of a complex pattern of filaments, sheets, bubbles, and irregular clumps.
The densest parts of the Cloud, located in its rimward parts and with concentrations of particles in excess of a million per cm³, are called molecular cores. The quantities of dust within the cores are sufficient to block light from background stars so that they appear in silhouette as dark nebulae. Each core generally measures a few thousand AU in diameter. The tail of the cloud, with significantly lower densities, lies to coreward-trailing.
The Separe Cloud has been known of for millennia, a ghostly dark patch in nighttime skies lying on the edge of the Great Rift. Astronomers and romantics have peered towards the cloud since the Sector was first settled, and their minds have seen pictures and faces depicted within the swirled shapes of the cores that lie within it.
The name derives from the old Terran French word for "separation".
Worlds & Sectors (Astrography)
World Member Data
World Listing: 1105