D'Astan sector was a sector within the Outer Rim of the galaxy. It contained the planet Nez Peron. By the time of Emperor Palpatine's return, it was governed by Baron Ragez D'Asta. It seceded from the Imperial Remnant in 11 ABY, following the dissolution of the Interim Council. The sector was at least partially invaded by the Yuuzhan Vong around 27 ABY or earlier .
- Crimson Empire II: Council of Blood (First mentioned)