Spathiwa
| Water World | |
| Spathiwa (Epsilon Gruis I) | |
|---|---|
 Original Spathi Homeworld | |
| Political | |
| Homeworld for | Spathi (their former homeworld) |
| Astronomical data | |
| Star | Epsilon Gruis |
| Orbit | 11.5 a.u. |
| Atmosphere | 1.96 atm |
| Temperature | 31°C |
| Weather | Class 1 |
| Tectonics | Class 1 |
| Mass | 1.75 e.s. |
| Radius | 1.20 e.s. |
| Gravity | 1.21 g |
| Day length | 0.75 Earth days |
| Tilt | 14° |
| 1 satellite | |
| Epsilon Gruis Ia | Pellucid World |
| Map | |
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Spathiwa is the Spathi name for their homeworld, Epsilon Gruis I (241.6 : 368.7). It is the only planet that orbits the star Epsilon Gruis, or Yuffo as the Spathi call it, and a single moon orbits the planet.
The Spathi race evolved on this Water World, in time forming a nascent, sedentary civilization. At least four centuries prior to the Ur-Quan Slave War events, the voracious Evil Ones suddenly appeared on Spathiwa, transported to the surface by some unknown force, an act that fit the style of Umgah practical jokes. Ultimately, after more than a century of migrating from continent to continent to escape this alien threat, the Spathi departed from the planet completely and settled on their moon.
Should The Captain rid Spathiwa of the Evil Ones threat, the Spathi will return to their homeworld and encapsulate themselves in a slave shield. It would be revealed that their delegation to the Earth Star Base was a recon mission to study the Slave Shield and reverse engineer it.