Deneb

Deneb was a star orbited by multiple planets.

According to one account, Dr Who was driven to travel back to the 2150 Dalek invasion of Earth because he had seen records on the Earth of the year 3000 of an alien invasion at that time. These records described the invaders are originating from the planet "M-1", which orbited Deneb. (COMIC: Daleks, invasión a la Tierra año 2150) In other accounts, the Daleks' homeworld was identified as Skaro, (TV: Dr. Who and the Daleks) parts of a "Skaro system" with twelve or more planets orbiting it. (PROSE: Dalek Combat Training Manual)

Other planets documented as orbiting Deneb in other accounts included Deneb-3, (COMIC: Under the Volcano) Deneb IV, (AUDIO: The Ultimate Adventure) and Deneb-7. (PROSE: The Touchdown on Deneb-7)

Behind the scenes
As Daleks' Invasion Earth 2150 A.D. was released in Argentina long before Dr. Who and the Daleks (or any other version of the original The Daleks narrative), the comic adaption Daleks, invasión a la Tierra año 2150 was written for an audience unfamiliar with the otherwise-established Dalek homeworld of Skaro. is a real star in the Milky Way, though it is not known to be orbited by any planets, let alone inhabited ones. It is unclear whether one should understand "M-1" to be human astronomers' name for Skaro (identifying one of Skaro's "two suns" as Deneb), or a differing, perhaps diegetically mistaken account of the Daleks' origin.