A list of planets that were the ninth in their star system. Trending pages Pluto All items (12) # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Other A Argol IX C Callico Nine Cantabulous Nine I Iota 9 O Olphus 9 P Pluto Praxos 9 R Refkeet Nine Rontan 9 S Sisyphus IX X Xeros-9 Z Zastros 9 Categories: Planets by ordinal + cat Cancel Save Community content is available under CC-BY-SA unless otherwise noted.
