A Sphere Opposite our Sun

[zenmaster]

Ra didn't say it was in time/space

Ra doesn't say a lot of things. What do you infer? The simple answer to the OP is that the body is too dark, too small, and/or not sufficiently massive to directly detect with our tech (i.e. telescopes). The compactness of extremely dense objects is due to motion in time/space (i.e. supernova remnant moving at greater than unit speed), according to Larson.