A sector (miqqurvit) is a cubic volume of space, the measurement of which is defined as a fraction of the total volume of the galaxy. The fraction's denominator is always 8 to the power of n, where n is the so-called "order" of the sector in question. For instance, a first order sector is equal to 1/8 the volume of the galaxy, whereas a second order sector is equal to 1/64 (1/8²) of the total galactic volume.

Sector code notation is a way to represent sector order and location along the three axes: x (east-west), y (north-south), and z (up-down). The axes are defined at the absolute center of the black hole which lie in the middle of the galaxy. Axes x and y are coplanar, meaning that they lie on the same plane, whereas the z axis is perpendicular to that plane. See below.

Each numeral from 1 to 8 is associated with a specific octant of the sector space. The rules are as follows:

• All odd numbers indicate negative x (west), all even numbers indicate positive x (east)
• Each pair of numbers are of the same polarity, starting positive: 1,2 and 5,6 indicate positive y (north), 3,4 and 7,8 indicate negative y (south)
• Each group of four numbers are of the same polarity, again starting positive: 1,2,3,4 indicate positive z (up), 5,6,7,8 indicate negative z (down)

For example, 3 indicates the +x, -y, +z octant; this means that it is west, south, and up.

In proper notation, a sector code will begin with $, which will then be followed by any number of numerals from 1-8 indicating octants. For each numeral, the numeral immediately following it is its subdivider, as the volume which the subdivider is an octant of is its preceding number. For instance, $12 is a second order sector code indicating the west-up-north (2 : -x +y +z) octant of the east-up-north (1 : +x +y +z) octant, totalling 1/64 of the total galactic volume.

As the galaxy is (clearly) quite titanic in scale, sector codes will almost always be of at least the eighth order, which represents 1/1.55e+231 (8⁸) of the total galactic volume. This is approximately the scale of the average star system. From there, celestial objects being included in a specific object declaration will be indicates by their scientific or common name, e.g. $38473461 "Earth".