Skaro system

The Skaro system (PROSE: War of the Daleks) or Skarosian system (PROSE: Remembrance of the Daleks) was the star system containing the homeworld of the Daleks, Skaro.

By one account, Skaro was the twelfth planet in the system, (TV: The Daleks) along with Alvega, the closest planet to Skaro. (COMIC: The Amaryll Challenge) One account stated there were two outer planets beyond Skaro, and that system had one sun (PROSE: War of the Daleks) while another account indicated there were two suns. (PROSE: The Stranger) The Dalek Combat Training Manual claimed there were only twelve planets, counting Skaro, in the system. (PROSE: Dalek Combat Training Manual)

According to one account, Dr Who was driven to travel back to the 2150s 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 the star Deneb. (COMIC: Daleks, invasión a la Tierra año 2150) 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)

The entire system was vaporised in the destruction of Skaro, (TV: Remembrance of the Daleks) although the Dalek Prime claimed this was not true and Antalin was actually destroyed. (PROSE: War of the Daleks)

In an abnormal state of reality, the Infinity Doctor had Omega destroy and restore Skaro's system repeatedly to prove the meaninglessness of his omnipotence. (PROSE: The Infinity Doctors)

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. For this reason, it gave an alternative origin for the murderous invaders: the planet M-1 orbiting the star Deneb. is a real star in the Milky Way; 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, and unusually presenting Skaro as a planet in Earth's own galaxy), or a differing, perhaps diegetically mistaken account of the Daleks' origin.