There is some kind of hint if you hover over it.
14th galaxina is a bit iffy. requires that you
a.) return the shell (and get 13th)
b.) go from entertainment district iltari to ship (must use minimap, thats a oversight) and you get the info
that one is not related to nimhe.
you will be approached by a collector while you are in the entertainment district. The action triggers with 100% probability when you go back to your ship using the mini map in the top left.
should trigger throughout all day but certainly after six in the evening not sure.