Why didn Wedge invite Corran Horn to Adumar?
It could have been for one or more of several reasons. First, Corran might have been wrapped up in Jedi concerns at the time. Second, Wedge definitely wanted Tycho along on this mission and Tycho probably wanted Corran left behind for his leadership role in Rogue Squadron. Third, Michael A. Stackpole suggests that Corran and Mirax might have been working at conceiving a child at the time.