North, south, east, and west are insufficient terms for referring to
within the galaxy. Instead, the following conventions have achieved
acceptance when referring to direction:
Toward the galactic core (toward Capital
from Terra) is coreward;
away from it, in the direction of
the rim, is rimward. In the direction
in which the galaxy is rotating (toward the Spinward Marches from Vland) is spinward,
and the other direction is trailing.
These directions are in widespread use in describing Imperial features
businesses. For example, the Spinward Marches is a sector at the extreme spinward fringe of
Imperium; Rimward Lines is an
interstellar transport company.
Finally, within the Imperium, the term coreward is also used to
the direction of Capital, the Imperial core. There is some
for confusion if the term is accepted out of context.