Stellaluna was one of my favorite books as a child. Its the story of a bat who got lost and couldn't fly so she lived with a family of birds in their nest, being the only bat in a family of birds made her the star of the story. Stalla also sounds and reminds me of stars,and sounds like stellar which is a different word for awesome. It is also a diva name. So Stella came about because its short for Stellaluna.