"Well, stars are.. Stars, obviously. They lie between the world at large and the realm of the Gods, if you believe certain priests and clerics." Which..Well, Vex isn't an atheist (can you really be an atheist in d&d when your brother is a champion to one, and a close friend communes with her own goddess often?), but there's plenty she doesn't know about what lies beyond the skies.

"When you travel, by land or by sea, they are often fixed points in the sky that shift with the passage from dusk till dawn. Some constellations aren't visible, depending on where you are, or what time of year it is." She's used the stars more than once to help find her way out of the wilds before.