A Map of the Milky Way's spiral arms

The Norma Arm is a minor spiral arm of the Milky Way galaxy. The inner part of the arm is called the Norma Arm. The outer end of the arm is called the Cygnus Arm (not to be confused with the Orion-Cyguns Arm), which is outside the Perseus Arm.

source: http://simple.wikipedia.org/wiki/Norma_Arm