How many tons is Ceres?

[High Orbit Drifter]

On the bright side, if you run out of mining material, leak some info to the nearest Bothan spy that one of the system planets is about to revolt.

It's got to be Mimas.

New death star IV with camouflaged hull....we'll get it right this time...for sure.

Well, if they can convert Mimas to a battlestation, and its (3.7493±0.0031)×10^19 kg, then it shouldn't be too big a leap to do Ceres (9.393±0.005)×10^20 kg
Sure, it IS an order of magnitude bigger, so they won't do Ceres until the last sequel, Star Wars, The Reforcening.