This article covers the Canon version of this subject.  Click here for Wookieepedia's article on the Legends version of this subject. 

OnACanonArticleGoToLegends

Irolunn was a gas. Its presence in the exosphere of the planet Jiruus, along with tibanna and Clouzon-36, was indicative of hyperdrive fuel and particle weaponry.[1]

Appearances

Notes and references