def _getActivePassive(obj1, obj2):
    """ Returns which is the active and the passive objects. """
    speed1 = abs(obj1.lonspeed) if obj1.isPlanet() else -1.0
    speed2 = abs(obj2.lonspeed) if obj2.isPlanet() else -1.0
    if speed1 > speed2:
        return {'active': obj1, 'passive': obj2}
    else:
        return {'active': obj2, 'passive': obj1}
