Despite the name, this works equally well for piercing the veil of the Astral and Ethereal planes.

Astral Sight [21] 
    See Invisible (Astral) [10.5] 
    See Invisible (Ethereal) [10.5] 
    Magical [-10%] 
    Spell Components [-20%] 
        Must say "sight" in Latin 
        Must gesture with hands 
Level 2 [27] 
    Add Extended Duration (x3) [+20%] 
Levels 3-8 [33/39/45/51/57/63] 
    Improve Extended Duration by 1 step [+20%]