Planet Files

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4-X-Alpha-4 - The extragalactic star system which the Movellans come from, as identified by Romana in Destiny of the Daleks.

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Abydos - A planet mentioned in The Leisure Hive.

Adipose 3 - Breeding world of the Adipose, mentioned to be lost in "Partners in Crime". In "The Stolen Earth" reveals the culprit as Davros. Returned to where it belonged by the New Doctor in Journey's End.

Agora - is the homeworld of the Sixth Doctor's companion Grant Markham. In 2191, the Cybermen attempted to take over this planet and change it into a breeding ground to rebuild their race in the Virgin Missing Adventures book, Killing Ground.

Algol - a planet mentioned in Destiny of the Daleks.

Alpha Canis - One also called Canis Major, is the home planet of the Canisians, a warmongering race encountered in Death Comes to Time. It is presumably located in orbit of the star Sirius AKA Alpha Canis Majoris.

Althrace - The name of both a star system and its primary planet, visited by the fifth Doctor in the Doctor Who Monthly comic strip "The Tides of Time." The planets of the system were bolted togther around a white hole. The system was home to race of Higher Evolutionaries, and to the demon Melanicus.

Alzarius - is Adric's homeworld, located in E-Space. It appeared in the serial Full Circle. Its galactic coordinates are identical to that of Gallifrey - except they were negative. In Full Circle, Alzarius is discovered to be covered in lush, dense forests and marshlands. Every 50 years, the planet is dragged further away from its sun by a larger planet, causing an occurrence known as "Mistfall".

Anagonia - A planet mentioned in the Seventh Doctor story The Greatest Show in the Galaxy.

Anathema - is the homeworld of the Eighth Doctor's companion Compassion.

Androzani - Major and Androzani Minor are a pair of planets and are the setting of the serial The Caves of Androzani. In The Caves of Androzani, Androzani Minor is discovered to feature an intricate network of caves, where spectrox-producing giant bats lived. When the planet moved closer to Androzani Major, mud bursts rose from Androzani Minor's core. Through extensive research into the original series, these planets are discovered to be located in The Sirius System, a system containing 5 planets, including the planets Sirius V and Sirius IV. It is also discovered that Androzani Minor was once covered by water, but has since drained away (as it also did on Androzani Major). Since then, both planets have become hot and arid desert planets. Native life on Androzani Minor includes the Magma Beast, which lives in Androzani Minor's bubbling mud pools.

Aneth - home of the Anethans, was forced to pay tribute to the planet Skonnos in the Fourth Doctor story The Horns of Nimon.

Anima Persis - A geo-psychic world, inhabited by psychic ghosts of its long-dead inhabitants. Visited in Death Comes to Time.

Anura Planet - almost entirely covered in water, home to an amphibian race. Mergrass was an Anuran - (The Infinite Quest).

Aractus - A planet mentioned in Wooden Heart.

Arcadia - is a human colony world in the 25th century, and the setting of the Virgin New Adventures novel Deceit. In "Doomsday", the Doctor told the Daleks that he had fought against them on Arcadia, at the front lines of the Time War, and refers to its fall. In the Torchwood episode "Kiss Kiss, Bang Bang", part of the plot revolves around Captain Jack Harkness's friend Captain John Hart's search for an Arcadian diamond. The Mayflower, a colony ship seen in the Doctor Who Monthly comic strip "Profits of Doom," was headed to settle Arcadia. Note that these may not all refer to the same planet.

Arcateen V - is referred to in "Invasion of the Bane" (The Sarah Jane Adventures). It is the home planet of the Butterfly People, which include a "star poet" associate of Sarah Jane Smith and a criminal called Mary, who features in "Greeks Bearing Gifts" (Torchwood).
Archetryx Planet - that is home to a time-active race. Visited in the audio The Apocalypse Element, and frequently mentioned in the audio line.

Arden - the home of the Shenn, is the setting for the Virgin Missing Adventures book Shadowmind.

Argolis - is the setting of the serial The Leisure Hive. Argolis is the first of the Argolin leisure planets. Argolis became radioactive after the Argolins' 20-minute war with the Foamasi. The surviving Argolins then built a Leisure Hive, and abandoned their war-like culture to promote peace and understanding between alien races.

Aridius - The planet where the story The Chase begins. It was once a planet completely covered by oceans; but its orbit around both its suns was somehow altered and now its seas have dried up and there is nothing left but desert. The only remaining species are the amphibious Aridians and the octopus-like Mire Beasts.

Arkannis Major - is a planet where fiction is banned, visited by the Doctor, Rose and Jack in the The Stealers of Dreams. It is also known as Colony World 4378976.Delta Four, Oneiros, Journey's End, and Discovery.

Artaris Planet - visited in the Excelis Trilogy of audio plays, beginning with Excelis Dawns. Excelis was a major city-state on the planet. Bernice Summerfield and Iris Wildthyme also visited the planet.

Asgard - The Doctor and River Song went picnicking here at some point. It was mentioned in "Silence in the Library"

Astra - A planet mentioned in The Rescue.

Augea - A planet mentioned in Sting of the Zygons. The planet mirrors Greek mythology and the Twelve Labours of Hercules.

Atrios - is one of the planets at war in The Armageddon Factor.

Avalon - A planet with six moons. Once home to an advanced race, it was colonised by humans, setting up a nation named Elbyon. The Doctor visited Avalon circa 3025 in the novel .The Sorceror's Apprentice.

Axista Four - is the planet on which the Independent Earth Colony was founded by great humanitarian Stewart Ransom in the year 2439. The Second Doctor, Jamie McCrimmon, and Zoe Heriot visited this colony in 2539 in the Past Doctor Adventures book, The Colony of Lies.

Azure - The blue planet seen from the ships in the Fourth Doctor story Nightmare of Eden.