Arcturus was the star in at the centre of the Arcturian system located forty light-years from Earth. (PROSE: Only a Matter of Time)
It was presumably part of the Arcturus sector. (PROSE: Lucifer Rising)
Astronomical data[]
Planets orbiting Arcturus included and a planet known simply as Arcturus, (TV: The Curse of Peladon) Arcturus II, (PROSE: Transit) AS4 (COMIC: Junk-Yard Demon) and Arcturus Six. (PROSE: Love and War)
The Arcturians they believed that the star's immense gravity was responsible for drawing away their world's atmosphere. (PROSE: Only a Matter of Time)