I presume that relative gravitational field strength positively contributes to the likelihood of finding oneself in a given location, accounting for the fear of ending up in a massive body (most likely a star).
Alternatively, it might be that flawed destination co-ordinates may affect the process of jumping itself, rather than the destination: which is to say, being disgregated into a molecular gas or perhaps torn apart by the singularities that are presumably used to open the wormholes. Qubex 09:58, 27 April 2007 (CDT)