In 1912, Russian composer Nikolai Myaskovsky wrote his symphonic poem Alastor, Poème d'après Shelley (Op. 14) based on Shelley's work.
Before long he completed a bust of "Alastor, or the Spirit of Solitude", and began statues of "Echo" and "Night".
The Alastor Cluster is the fictional setting of three of Jack Vance's novels: Trullion: Alastor 2262, Marune: Alastor 933, and Wyst: Alastor 1716, each named after a world in the cluster.