Stars are beautiful in the night sky. The element Star in Little Alchemy is necessary for the combinations for Christmas Tree, Space, Starfish, Black Hole, Galaxy, Constellation, and Super Nova. There are two methods to make Star, both of them need to make Sky and Night first. Of course the method 1 is easier. Check out the detailed instructions and walkthrough, then try it yourself.
Fire + Water = Steam
Steam + Air = Cloud
Cloud + Air = Sky
Earth + Fire = Lava
Lava + Air = Stone
Sky + Stone = Moon
Sky + Moon = Night
Method 1: Sky + Night
Sky + Night = Star
Method 2: Night + Telescope
Air + Stone = Sand
Sand + Fire = Glass
Sky + Glass = Telescope
Night + Telescope = Star