Sulorine was the planet of origin for the human Vanden Huyck Willard. He was working with the Alliance to Restore the Republic on Yavin 4, a moon, at the time of 0 BBY.
Within established Star Wars canon, Sulorine is referenced in the 2023 book Star Wars: Dawn of Rebellion: The Visual Guide. This reference guide was authored by Pablo Hidalgo and Emily Shkoukani. This world initially appeared within the Star Wars Legends continuity. It was first noted in Timothy Zahn's 2006 novel titled Outbound Flight.