Starbase Range

Starbase Range is a statistic representing the radius (in tiles) of the zone of control of a starbase. The default is 5 (6 for vigilant civilizations).

Bonuses to Starbase Range
The and  modules both increase.

Other bonuses include:
 * The technology available to entrepreneurs
 * The Whisper and The Gesture mercenary ships from
 * The Pragmatic Ideology gives +2  Starbase Range with the Builder/Inventive choice.