My Friend, The Starfinder by George Ella Lyon, illustrated by Stephen Gammell

From chapters.ca:
Dazzled, a little girl listens to her old neighbor's story of following a falling star when he was a boy. He found it, too. He put it in her hands. But that's not all the starfinder has to tell. One day something found him. It's a story too good to keep. See for yourself.