On a more serious note, from what I know of astrophotography (admittedly, not much), maybe it would be better to choose the lens first, then the camera.

While any lens which is sharp in the corners and has low distortion (for example, the Micro-Nikkor 55 2.8 AI - good also at infinity) should do, for best results, a lens which is good for night photography should be chosen.
This often includes, but is not limited to, "Noct" lenses. Apparently the trick is low coma and flare/reflections.
Also, many non-Noct lenses which do well are not made by Nikon. As it's a relatively small group of lenses, maybe you should do some more investigating, there are some astrophography sites, or repharse your original question.

Have fun!