What does Yildiz mean?
The Turkish word 'yildiz' ('star'). The same word was later applied (as 'Yildun') to a star in Ursa Minor, but as a given name it simply means 'star'.
What does Aylin mean?
Aylin is a Turkish name built on 'ay' ('moon'), usually read as 'moon halo' or 'belonging to the moon.' The moon root is solid, though the exact second element is less certainly glossed.