Settings

An sf novel can be set entirely on one other planet or can involve travel between several planets.

Poul Anderson's The Man Who Counts is set entirely on Diomedes and his The Day Of Their Return is set entirely on Aeneas. However, his Ensign Flandry is set on Terra and Starkad and in Ardaig on Merseia, his A Circus Of Hells is set on Irumclaw, Wayland and Talwin and his The Rebel Worlds is set on Terra, Shalmu, Llynathawr, Aeneas and Dido.

A Knight Of Ghosts And Shadows introduces Dennitza and Chereion. A Stone In Heaven reuses Hermes and Terra and introduces Ramnu. The Game Of Empire introduces Imhotep and Daedalus.

Etc.