Which planet, other than Earth, appears in the most episodes of Star Trek?


  • "appears" means a scene in the episode is actually set there (mention of a planet is not sufficient)
  • versions of the same planet in parallel universes count as the same planet for counting purposes
  • all TV series of Star Trek (TOS, TNG, DS9, VOY, ENT, TAS) are included, but not the movies
  • 1
    There isn't actually any problems if you don't specify it - if you say that TAS and the movies count, then Vulcan wins, otherwise if you discount the movies and TAS then Bajor is the correct answer. Your original question did stipulate episodes, meaning the movies don't count. It's entirely up to you, but because one is 17 and the other 16, only one can be correct - the choice is yours! Commented Nov 9, 2015 at 0:46
  • 4
    @randal'thor : Saw your ping --- thanks! I'm not sure I can improve upon TheDoc's answers. If the films are allowed, Vulcan should be the winner; otherwise, Bajor, considering that DS9 is set in proximity of Bajor and there are about 180 episodes to work with. Perhaps the surprising thing is how little we see Bajor considering how many DS9 episodes there are.
    – Praxis
    Commented Nov 9, 2015 at 0:50
  • 3
    @Praxis very true; I was completely shocked to find Bajor was seen so few times throughout the series - DS9 is literally right on top of the planet for goodness' sake! Commented Nov 9, 2015 at 0:51
  • 2
    @randal'thor, this sounds like a question @ ThePopMachine would write Commented Nov 9, 2015 at 4:12
  • 1
    @ToddWilcox just sayin', Earth is the only planet with Sisko's Creole Kitchen.
    – hobbs
    Commented Nov 10, 2015 at 14:25

4 Answers 4


I think it must be Cardassia Prime, which we see 18 times:

twice in TNG episodes:

  • "Chain of Command", part 1
  • "Chain of Command", part 2

and in sixteen times DS9 episodes:

  • "Tribunal"
  • "Second Skin"
  • "Defiant"
  • "Trials and Tribble-ations"
  • "By Inferno's Light"
  • "Tears of the Prophets"
  • "Image in the Sand"
  • "Shadows and Symbols"
  • "Treachery, Faith and the Great River"
  • "Penumbra"
  • "'Til Death Do Us Part"
  • "Strange Bedfellows"
  • "The Changing Face of Evil"
  • "Tacking Into the Wind"
  • "The Dogs of War"
  • "What You Leave Behind"

See the Memory Alpha page.

  • 1
    "Trials and Tribble-ations" is a little arguable; it just has a scene where the Defiant is in orbit around Cardassia Prime. But even if you left it out, that's still more than Bajor has. Great find! This deserves way more upvotes than my answer...
    – Micah
    Commented Nov 10, 2015 at 18:41
  • @Micah: the list is from the Memory Alpha page, they included that episode; I maybe wouldn't have either. Commented Nov 11, 2015 at 15:20

This one:

Voyager credits planet

It clearly is not Earth, since it has rings, and I do believe it appears (and is not just mentioned) in the credits sequence of every single Voyager episode.

DS9 and TNG both have a few more episodes than VOY. However:

  • TNG revamped their credits in season 3. The season 1/2 credits include shots of Mars, Jupiter, and Saturn; the later-season credits include only a shot of a single gas giant which is neither Jupiter (its rings are too visible) nor Saturn (it's the wrong color).
  • DS9's credits include no planets. Note however that the natural celestial body which appears in the largest number of Star Trek episodes is almost certainly the comet which begins the DS9 credits (which appears to be consistently the same object even through a credit revamp).
  • 18
    you're pushing the definition of "in" there a bit.
    – Jasen
    Commented Nov 9, 2015 at 6:35
  • 5
    Boo! for tricky technical answer and for the same style of answer as @Richard's scifi.stackexchange.com/a/104146/3823 . Plus, if you're going to be technical, there is no "scene set there" Commented Nov 9, 2015 at 12:31
  • 40
    This is like saying the Columbia Pictures Lady is the most prolific actress.
    – targumon
    Commented Nov 9, 2015 at 15:01
  • 3
    The "This guy" of planets! Commented Nov 9, 2015 at 17:57
  • 2
    @jpmc26, no it really isn't! This site is not a contest to see who can win with the trickiest answer. I realize it goes against everyone's inclination because we are overwhelmingly nerds here, but people should be giving and upvoting useful answers, which means using one's brain to infer the reasonable intent of a question without the questioner needing to spell out every annoying restriction. Commented Nov 11, 2015 at 17:05


I'm going for Bajor, seen 16 times:

  • "Chain of Command, Part I" - TNG
  • "Birthright, Part I" - TNG
  • "Emissary" - DS9
  • "The Circle" - DS9
  • "The Siege" - DS9
  • "Cardassians" - DS9
  • "The Collaborator" - DS9
  • "Past Tense, Part I" - DS9
  • "Shakaar" - DS9
  • "Rapture" - DS9
  • "The Reckoning" - DS9
  • "The Changing Face of Evil" - DS9
  • "What You Leave Behind" - DS9
  • "Maneuvers" - VOY
  • "Nothing Human" - VOY
  • "Flesh and Blood" - VOY
  • I don't know if that's the maximum, but Cardassia Prime appears more often than Bajor: there are two appearences in TNG, and 16 in DS9. See here: memory-alpha.wikia.com/wiki/Cardassia_Prime Commented Nov 10, 2015 at 9:01
  • 1
    @JanJohannsen excellent find! Please post this as your own answer and may a thousand up votes rain down upon you! Commented Nov 10, 2015 at 9:04
  • @JanJohannsen no longer! Now go forth and post good sir! Commented Nov 10, 2015 at 9:07
  • Not sure why this got a downvote! Commented Nov 11, 2015 at 3:37
  • Because the correct answer to "Which (non-Earth) planet appears in the most Star Trek episodes?" is not Bajor, but Cardassia Prime. Commented Nov 13, 2015 at 13:42


Edit: Now that the movies don't count, this isn't the correct answer, but is still valid within the scope of the question!

Possibly the planet Vulcan, seen 12 times:

  • "Amok Time' - TOS
  • 'Journey to Babel - TOS
  • 'Yesteryear' - TAS
  • 'Sarek' - TNG
  • 'Unification I' TNG
  • 'Gambit II' TNG
  • 'Persistence of Vision' - VOY
  • 'Gravity' - VOY
  • 'Home' - ENT
  • 'The Forge' - ENT
  • 'Awakening' - ENT
  • 'Kir'Shara' - ENT

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