First Sister

The first three planets in Kilian are dwarf worlds known informally as the Three Sisters. The sisters travel close to the star and are essentially uninhabitable rocks. For the most part, the worldlets are an outlet for UEE weapons testing exercises: their surfaces bear the scars of hundreds of years of antimatter blasts and railgun impacts.

Part of a trio of worlds known as the Three Sisters, Kilian I is a hot Jupiter that shares an orbit with Kilian II and Kilian III. Access to the Three Sisters is restricted due to the worlds' use as a Navy weapons testing site.