gurumoken literally , embarrassment killing krokandir literally , city of the sun , practically translated , imperial city kroka sun ; specifically , the sun which the planet rukkur orbits miscellaneous huvr standard human planetary vehicle , named after a play on the combining of human utility vehicle and the word hover luxr a more private , luxurious and expensive variant of the huvr shipr a cargo-carrying variant of the huvr jump gate most common method of interstellar travel , which smaller vessels are incapable of on their own .