NARRATOR: Back at the long end of the Carina-Cygnus arm, patrolling around Oisri...
KEVYN: Tagii, where do you think this wanderer originated?
TAGII: It's impossible to say, since she's obviously not natural.
Once you factor in the artifice required to fashion something the size of a planet, clues like velocity and surface spectra can be expected to mislead.
KEVYN: Well done, Tagii. So... where do you think Oisri's creators want us to believe that she originated?
TAGII: I think being stuck up here instead of down there working on the puzzle is killing you.