Light-year: Difference between revisions
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A '''light-year''' was a [[unit of measurement]] used to measure interstellar [[distance]]. It was quantified as the distance that light travelled in a [[vacuum]] over the course of an [[Earth]] year. 100 light-years made up a '''light-century'''. ([[TV]]: ''[[The Ribos Operation]]'') | A '''light-year''' was a [[unit of measurement]] used to measure interstellar [[distance]]. It was quantified as the distance that light travelled in a [[vacuum]] over the course of an [[Earth]] year. 100 light-years made up a '''light-century'''. ([[TV]]: ''[[The Ribos Operation]]'') | ||
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== Known distances == | == Known distances == | ||
=== From Earth === | === From Earth === | ||
[[Planet XXX]] was 9.2 light years from Earth. ([[AUDIO]]: ''[[Through the Ruins (audio story)|Through the Ruins]]'') | |||
[[Epsilon Eridani]] was "about 11 light-years or so" from Earth. ([[COMIC]]: ''[[Is Anyone There? (comic story)|Is Anyone There?]]'') | |||
[[Planet (Smile)|A colony planet]] visited by the [[Twelfth Doctor]] and [[Bill Potts|Bill]] was 20 light-years from Earth. ([[TV]]: ''[[Smile (TV story)|Smile]]'') | |||
[[Vega 3]] was 27 light-years from Earth. ([[PROSE]]: ''[[K9 and the Beasts of Vega (novel)|K9 and the Beasts of Vega]]'') | |||
[[Arcturus (star)|Arcturus]] was 40 light-years from [[Earth]]. ([[PROSE]]: ''[[Only a Matter of Time (short story)|Only a Matter of Time]]'') | |||
[[Aldebaran II]] was 65 light-years from Earth. ([[AUDIO]]: ''[[The Paradise of Death (audio story)|The Paradise of Death]]'') | |||
[[Halcyon (planet)|Halcyon]] was 90 light-years from Earth. ([[AUDIO]]: ''[[The Resurrection of Mars (audio story)|The Resurrection of Mars]]'') | |||
[[Sunday (planet)|Sunday]] was 100 light-years from Earth. ([[PROSE]]: ''[[Wetworld (novel)|Wetworld]]'') | |||
[[Beta Caprisis]] was 100 light-years from Earth. ([[PROSE]]: ''[[Sanctuary (novel)|Sanctuary]]'') | |||
In [[1873]], [[Mondas]] was 200 light-years from Earth. ([[AUDIO]]: ''[[The Silver Turk (audio story)|The Silver Turk]]'') | |||
[[Bellatrix]] was 324 light years away from Earth. ([[PROSE]]: ''[[Nightshade (novel)|Nightshade]]'') | |||
[[Gger]] was 500 light-years from Earth. ([[PROSE]]: ''[[Listen - The Stars (short story)|Listen - The Stars]]'') | |||
[[Crimson Heart]] was 10,000 light-years from Earth. ([[TV]]: ''[[Death of the Doctor (TV story)|Death of the Doctor]]'') | |||
The [[Orpheus constellation]] was 10,000 light-years from Earth. ([[TV]]: ''[[Aeolian (TV story)|Aeolian]]'') | |||
According to one account, [[Gallifrey]] was 30,000 light-years from Earth. ([[PROSE]]: ''[[The Devil Goblins from Neptune (novel)|The Devil Goblins from Neptune]]'') | |||
The [[homeworld]] of the [[Uvodni]], located in the [[Spiral Cluster]] of the [[Dragon Nebula]], was 34,000 light-years from Earth. ([[TV]]: ''[[Warriors of Kudlak (TV story)|Warriors of Kudlak]]'') | |||
[[New Earth (New Earth)|New Earth]] was 50,000 light-years from Earth. ([[TV]]: ''[[Gridlock (TV story)|Gridlock]]'') | |||
[[Vandos]] was 60,000 light-years from Earth. ([[COMIC]]: ''[[Mr Nobody (comic story)|Mr Nobody]]'') | |||
[[Dæmos]] was 60,000 light-years from Earth. ([[TV]]: ''[[The Dæmons (TV story)|The Dæmons]]'') | |||
[[Galaxy Seven]] was 290,000 light-years from Earth. ([[PROSE]]: ''[[The Eyeless (novel)|The Eyeless]]'') | |||
[[Surobos]] was 420,000 light-years from Earth. ([[COMIC]]: ''[[Shipwreck! (comic story)|Shipwreck!]]'') | |||
[[Gorgos]] was 100,000,000 light-years from Earth. ([[TV]]: ''[[Eye of the Gorgon (TV story)|Eye of the Gorgon]]'') | |||
According to one account, Gallifrey was 250,000,000 light-years from Earth. ([[TV]]: ''[[Doctor Who (TV story)|Doctor Who]]'') | |||
According to the [[Eleventh Doctor]], [[Apalapucia]] was 2,000,000,000 light-years from Earth. ([[TV]]: ''[[The Girl Who Waited (TV story)|The Girl Who Waited]]'') | |||
According to the [[First Doctor]], [[Destination]] was billions of light-years away from Earth. ([[AUDIO]]: ''[[The Destination Wars (audio story)|The Destination Wars]]'') | |||
=== From other locations === | === From other locations === | ||
The [[Ao (constellation)|Ao]] [[constellation]] and [[Qqaba]] were 9.6 light-years from [[Gallifrey]]. ([[PROSE]]: ''[[Lungbarrow (novel)|Lungbarrow]]'') | |||
[[Ribos]] was 300 light-years from the [[Magellanic Clouds]]. ([[TV]]: ''[[The Ribos Operation (TV story)|The Ribos Operation]]'') | |||
The [[Twelfth Cyber Legion]] was 20,000 light-years from [[Demons Run]]. ([[TV]]: ''[[A Good Man Goes to War (TV story)|A Good Man Goes to War]]'') | |||
[[Safeplace]] was about 32,000 light-years from [[Mars]]. ([[AUDIO]]: ''[[The Judgement of Isskar (audio story)|The Judgement of Isskar]]'') | |||
The [[Second Doctor]] once dematerialised [[The Doctor's TARDIS|the TARDIS]] while it was 4 quadrillion light-years from the nearest [[galaxy]]. ([[PROSE]]: ''[[When Starlight Grows Cold (short story)|When Starlight Grows Cold]]'') | |||
[[Katura (planet)|Katura]] was 3.62 light-years from Mars. ([[AUDIO]]: ''[[Judoon in Chains (audio story)|Judoon in Chains]]'') | |||
== Known measurements == | == Known measurements == | ||
The [[Mutter's Spiral]] [[galaxy]] was around 100,000 light-years in diameter. ([[PROSE]]: ''[[The Eyeless (novel)|The Eyeless]]'') | |||
The [[Morestran]] empire spanned 80,000,000 light-years. ([[PROSE]]: ''[[Zeta Major (novel)|Zeta Major]]'') | |||
[[cy:Blwyddyn oleuni]] | |||
[[Category:Astronomy]] | [[Category:Astronomy]] | ||
[[Category:Units of distance from the real world]] | [[Category:Units of distance from the real world]] | ||
[[Category:Light]] | [[Category:Light]] | ||
Revision as of 22:06, 3 April 2019
A light-year was a unit of measurement used to measure interstellar distance. It was quantified as the distance that light travelled in a vacuum over the course of an Earth year. 100 light-years made up a light-century. (TV: The Ribos Operation)
Known distances
From Earth
Planet XXX was 9.2 light years from Earth. (AUDIO: Through the Ruins)
Epsilon Eridani was "about 11 light-years or so" from Earth. (COMIC: Is Anyone There?)
A colony planet visited by the Twelfth Doctor and Bill was 20 light-years from Earth. (TV: Smile)
Vega 3 was 27 light-years from Earth. (PROSE: K9 and the Beasts of Vega)
Arcturus was 40 light-years from Earth. (PROSE: Only a Matter of Time)
Aldebaran II was 65 light-years from Earth. (AUDIO: The Paradise of Death)
Halcyon was 90 light-years from Earth. (AUDIO: The Resurrection of Mars)
Sunday was 100 light-years from Earth. (PROSE: Wetworld)
Beta Caprisis was 100 light-years from Earth. (PROSE: Sanctuary)
In 1873, Mondas was 200 light-years from Earth. (AUDIO: The Silver Turk)
Bellatrix was 324 light years away from Earth. (PROSE: Nightshade)
Gger was 500 light-years from Earth. (PROSE: Listen - The Stars)
Crimson Heart was 10,000 light-years from Earth. (TV: Death of the Doctor)
The Orpheus constellation was 10,000 light-years from Earth. (TV: Aeolian)
According to one account, Gallifrey was 30,000 light-years from Earth. (PROSE: The Devil Goblins from Neptune)
The homeworld of the Uvodni, located in the Spiral Cluster of the Dragon Nebula, was 34,000 light-years from Earth. (TV: Warriors of Kudlak)
New Earth was 50,000 light-years from Earth. (TV: Gridlock)
Vandos was 60,000 light-years from Earth. (COMIC: Mr Nobody)
Dæmos was 60,000 light-years from Earth. (TV: The Dæmons)
Galaxy Seven was 290,000 light-years from Earth. (PROSE: The Eyeless)
Surobos was 420,000 light-years from Earth. (COMIC: Shipwreck!)
Gorgos was 100,000,000 light-years from Earth. (TV: Eye of the Gorgon)
According to one account, Gallifrey was 250,000,000 light-years from Earth. (TV: Doctor Who)
According to the Eleventh Doctor, Apalapucia was 2,000,000,000 light-years from Earth. (TV: The Girl Who Waited)
According to the First Doctor, Destination was billions of light-years away from Earth. (AUDIO: The Destination Wars)
From other locations
The Ao constellation and Qqaba were 9.6 light-years from Gallifrey. (PROSE: Lungbarrow)
Ribos was 300 light-years from the Magellanic Clouds. (TV: The Ribos Operation)
The Twelfth Cyber Legion was 20,000 light-years from Demons Run. (TV: A Good Man Goes to War)
Safeplace was about 32,000 light-years from Mars. (AUDIO: The Judgement of Isskar)
The Second Doctor once dematerialised the TARDIS while it was 4 quadrillion light-years from the nearest galaxy. (PROSE: When Starlight Grows Cold)
Katura was 3.62 light-years from Mars. (AUDIO: Judoon in Chains)
Known measurements
The Mutter's Spiral galaxy was around 100,000 light-years in diameter. (PROSE: The Eyeless)
The Morestran empire spanned 80,000,000 light-years. (PROSE: Zeta Major)
