Binary planetary system: Difference between revisions

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'''Twin''' or '''Sister planets''' were planets whose features were more or less identical, or at the very least similar, and were usually found nearby each other. This included the lifeforms which inhabited them.
{{wikipediainfo|Double planet}}
A '''binary planetary system''', also known as '''twin''', '''double''' or '''sister planets''', were planets whose features were more or less identical, or at the very least similar, and were usually found nearby each other. This included the lifeforms which inhabited them.


==List of twin planet systems==
== Known twin planets ==
*'''[[Earth]]''' and '''[[Mondas]]'''. These planets were ''so'' similar that even the shapes of their landmasses were identical, albeit vertically flipped. Similar lifeforms included [[human]]s and [[Mondasian]]s. ([[DW]]: ''[[The Tenth Planet]]'') According to one account, Mondas had lifeforms similar to the [[Silurian]]s. ([[DWM]]: ''[[The Cybermen]]'')
[[Earth]] and [[Mondas]] were ''so'' similar that even the shapes of their landmasses were identical, albeit vertically flipped. Mondas had lifeforms identical to [[human]]s called [[Mondasian]]s ([[TV]]: ''[[The Tenth Planet (TV story)|The Tenth Planet]]'') and lifeforms identical to [[Silurian]]s called [[Lizard King]]s. ([[COMIC]]: ''[[The Dead Heart (comic story)|The Dead Heart]]'') [[New Earth (New Earth)|New Earth]] also had the same orbit, size, atmosphere, and terrain as Earth. ([[TV]]: ''[[New Earth (TV story)|New Earth]]'')
*'''[[Androzani Minor]]''' and '''[[Androzani Major]]'''. ([[DW]]: ''[[The Caves of Androzani]]'')
 
*'''[[Thoros Alpha]]''' and '''[[Thoros Beta]]'''. ([[DW]]: ''[[Mindwarp]]'')
Other examples include [[Atrios]] and [[Zeos]], ([[TV]]: ''[[The Armageddon Factor (TV story)|The Armageddon Factor]]'') [[Androzani Minor]] and [[Androzani Major]], ([[TV]]: ''[[The Caves of Androzani (TV story)|The Caves of Androzani]]'') [[Thoros-Alpha]] and [[Thoros-Beta]], ([[TV]]: ''[[Mindwarp (TV story)|Mindwarp]]'') [[Raxacoricofallapatorius]] and [[Clom]], ([[TV]]: ''[[Love & Monsters (TV story)|Love & Monsters]]'') [[Gemino]] and [[Gemina]], ([[COMIC]]: ''[[The Secret of Gemino (comic story)|The Secret of Gemino]]'') a system in the [[Tornado Nebula]], ([[TV]]: ''[[Sky (TV story)|Sky]]'') [[Antari Two]] and [[Antari Three]], ([[PROSE]]: ''[[First Frontier (novel)|First Frontier]]'') [[Caludaar]] and [[Endarra]], ([[AUDIO]]: ''[[Scaredy Cat (audio story)|Scaredy Cat]]'') and [[Dinasis]] and [[Bagoss]]. ([[PROSE]]: ''[[The Mondas Touch (short story)|The Mondas Touch]]'')
*'''[[Raxacoricofallapatorius]]''' and '''[[Clom]]''' - similar lifeforms include [[Raxacoricofallapatorian]]s and the [[Abzorbaloff]]. ([[DW]]: ''[[Aliens of London]]'' / ''[[World War Three]]'', ''[[Love & Monsters]]'')
 
*'''[[Gemino]]''' and '''[[Gemina]]'''. ([[TVC]]: ''[[The Secret of Gemino]]'')
[[Zintorra]] was once described as being "in many ways a twin of Earth", although it had never developed intelligent life. ([[GAME]]: {{cs|The Legions of Death (game)}})
*The [[Tornado Nebula]] contained a binary planetary system which had extremely different lifeforms. One planet was inhabited by [[carbon]]-based lifeforms, similar to those on Earth, called [[Fleshkind]], while the other was inhabited by [[boron]]-based life called [[Metalkind]]. ([[SJA]]: ''[[Sky (TV story)|Sky]]'')


There were also other planets which were very similar. [[New Earth (planet)|New Earth]] was a planet which had the same orbit, size, atmosphere and terrain as [[Earth]]. ([[DW]]: ''[[New Earth (TV story)|New Earth]]'')
{{Wikipediainfo|Twin planet}}
[[Category:Planets by type]]
[[Category:Planets by type]]
[[Category:Astronomy from the real world]]

Latest revision as of 00:19, 16 August 2024

Binary planetary system

A binary planetary system, also known as twin, double or sister planets, were planets whose features were more or less identical, or at the very least similar, and were usually found nearby each other. This included the lifeforms which inhabited them.

Known twin planets[[edit] | [edit source]]

Earth and Mondas were so similar that even the shapes of their landmasses were identical, albeit vertically flipped. Mondas had lifeforms identical to humans called Mondasians (TV: The Tenth Planet) and lifeforms identical to Silurians called Lizard Kings. (COMIC: The Dead Heart) New Earth also had the same orbit, size, atmosphere, and terrain as Earth. (TV: New Earth)

Other examples include Atrios and Zeos, (TV: The Armageddon Factor) Androzani Minor and Androzani Major, (TV: The Caves of Androzani) Thoros-Alpha and Thoros-Beta, (TV: Mindwarp) Raxacoricofallapatorius and Clom, (TV: Love & Monsters) Gemino and Gemina, (COMIC: The Secret of Gemino) a system in the Tornado Nebula, (TV: Sky) Antari Two and Antari Three, (PROSE: First Frontier) Caludaar and Endarra, (AUDIO: Scaredy Cat) and Dinasis and Bagoss. (PROSE: The Mondas Touch)

Zintorra was once described as being "in many ways a twin of Earth", although it had never developed intelligent life. (GAME: The Legions of Death [+]Loading...["The Legions of Death (game)"])

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