Archives of Nethys

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Exploring the Galaxy / Exploration System / System Exploration

Finding Gravity Wells

Source Galaxy Exploration Manual pg. 35
Gravity wells are formed when massive astronomical objects exert significant gravitational pull, such as a star or black hole around which a system’s other astronomical bodies orbit. When you arrive in a system, you can typically discover its primary gravity well very quickly and without the need for skill checks.
You can then attempt to locate other astronomical objects in a system by searching for their telltale gravity wells. The most basic (and time-consuming) method for doing so involves searching the system via a starship’s sensors, using the map star system downtime activity. You can then determine the nature of the astronomical objects you locate (see Analyzing System Data below).
Due to the massive sizes of star systems and the relatively small size of even the largest planets and other bodies, finding all of a system’s gravity wells and corresponding worlds takes time. Traveling via starship to an identified astronomical object works as traveling in-system, taking 1d6+2 days.