System Data (As at 1 January 2661)
| Orbit (In AUs) | Name | UPP | Remarks | |
| Primary | Tau Ceti | G8V | ||
| 0.13 | Reis | Y200000-0 | ||
| 60.5 | Adamastor | YS00000-0 | ||
| *0.64 | Beiro | A9669CC-A N | Hi | |
| 1.40 | Inner Belt | F000631-9 N | ||
| 2.71 | De Gama | Gas Giant | Size 99 | |
| 1.20 | Acor | HS00234-A | Research Lab | |
| 1.42 | Lurio | Y210000-0 | ||
| 1.93 | Mandovi | Y444000-0 | ||
| 2.21 | De Gama's Ring | YR00000-0 | Ring System | |
| 2.57 | Chaimite | Y511000-0 | ||
| 3.04 | Guadlano | G4A2436-A N | Research Lab | |
| 6.82 | Vasconcellos | YS00000-0 | ||
| 13.80 | Madeira | Y3A5000-0 | ||
| 17.63 | Isin | Y100000-0 | ||
| 54.96 | Outer Belt | F000476-A N | Research Lab |