Ross 154 is a red dwarf star with a contingent of five planets, very close to Sol. It is a young star, less than a gigayear old, and as such is a highly active flare star (in the same class as UV Ceti), with an interflare period averaging about 48 hours. This also explains why Leto's biosphere is so simple; in fact, the Letosian organisms offer astrobiologists a valuable window into the process of abiogenesis.
LocationRoss 154 lies just under ten lightyears from Sol, in the constellation of Sagittarius, making it quite close to the center of known space.
- Momus (s)
- Perses (i)
- LetoΔ (n) [research station - UNSS Delos]
- Lelantos (n)
- Antiphates (i)
Fauna & Flora
The planet Leto hosts a unicellular nitrogen-based biosphere, composed entirely of a web of aeroplankton. These are known as Letogenids.
- Included Locations