In the prologue, you collect 4 moths to help Grandma get out of the house. This is the puzzle that puts them in their slots. If you complete the puzzle correctly the first time, you’ll get the Astronomy Trophy. If you don’t do it right the first time, you can always reload the chapter and try again.
Video of the puzzle can be seen here: Prologue Moth Puzzle and Astronomy Trophy on Youtube
Each moth has a name – Heavy, Light, Soft, or Coarse. Line up the markings on each moth to fit into the picture. See below where each one goes.