Terran Radii

Terran Radii, abbreviated to Tr, is the standard unit of measurement for measuring stellar objects in the Arrellio sector.

One Terran Radii is equal to the radius of Terros, as the name intuitively suggests. Terros was chosen as the measuring body for stellar objects because of its radius being approximately the average radius for all terrestrial planets in the Arrellio Sector, excluding outliers.