Should I ask to be moved up in the authorship list?
More important than who &quot;wrote&quot; the paper is whose research and ideas it is based on. Who is responsible for the &quot;intellectual content&quot; of the work. But I agree that 6th is pretty low. Some fields are fanatical about author order. But you can ask. Ask, at least, for an explanation of the author order. Maybe it is rational, maybe not.
But for an undergraduate, any paper is a good thing and being associated with established researchers in print is especially good. So, even if it isn't exactly &quot;fair&quot;, it is still something that you can point to in the future. Not everyone has such a thing to help them get to the next level.
Sometimes, not very rational, an author will be &quot;high up&quot; in the list for no better reason than they need a particular boost at the moment to get a job or similar.