Are there any examples in the Star Wars universe of a star system containing more than one planet/moon/whatever capable of supporting life?


  • To be "capable of supporting life", the natural ecosystem can support any kind of biological life with little to no technological assistance. Requiring constant technological assistance to breathe within the atmosphere does not count. Being capable of breathing in the atmosphere for a certain length of time, and then needing some technological assistance to recover (like, say, correcting some chemical imbalances from the alien atmosphere) counts.
  • Related to above, celestial objects that require an installation to provide an atmosphere do not count.
  • Terraformed planets/moons/whatevers count (this is the only exception to the first bullet).
  • The life on the planet need not be sentient. If a known planet only consists of vegetation, that's ok.
  • The planet need not be capable of supporting human life.
  • The examples of biological life should be readily apparent. If you can visibly see the organisms with the naked eye and without scientific analysis, then it counts.
  • Life on a planet does not need to inhabit the surface. Cloud City is a good example if the system it resides in meets the rest of the criteria.
  • The planets/system need not still exist. The Alderaan system could still count if it satisfies the other criteria.

I'd prefer Disney canon examples, but I strongly suspect the aren't any. So I'll accept examples from Legends that are noted as such.

  • Hosnian system from The Force Awakens might qualify if it can be established whether or not they were using artificial life support tech on the various moons/planets. Perhaps the novel has some detail on that? Commented Feb 11, 2016 at 0:37
  • Do moon-sized space stations count? If so, there's the pretty obvious pair of Endor and the second Death Star. Commented Feb 11, 2016 at 14:18
  • Hoth and Bespin. After all, the Falcon was able to fly from one to the other without having a functional hyperdrive, so they must be in the same system, no? ;-)
    – DevSolar
    Commented Feb 11, 2016 at 15:11
  • @DarrelHoffman: The Death Star doesn't count since it's atmosphere is artificially contained (with walls and ceilings) since it is essentially a military installation. Starkiller base certainly counts, though, if there's another celestial body that houses life. But, that raises an excellent question: what about an artificial moon/planet with an open atmosphere that supports life? I'd have to consider that situation, but I probably won't unless someone comes up with an example to force the issue.
    – Ellesedil
    Commented Feb 11, 2016 at 17:59

5 Answers 5


In terms of Disney Canon examples, there aren't that many.

  • Trandosha and Kashyyyk appear to be in the same system as each other (mentioned in Clone Wars episode 'Wookiee Hunt' as well as the "Ultimate Star Wars" factbook, but interestingly not on the Star Wars website)

  • The Star Wars: Commander game indicates that Yavin has 4 habitable moons

  • There's a mention that the Corellian System has 5 planets (referred to as the "Five Brothers") in the Matthew Stover Novelisation of Revenge of the Sith. That being said, the conversation between Palpatine and Anakin didn't make it into the film, which makes it Legends-canon, rather than Disney-canon.

“All right,” Anakin said softly. “Corellia. I’ll take Corellia.”

“The planet, or the whole system?”

Anakin stared.


“I just-” He shook his head blankly. “I can’t figure out if you’re kidding, or completely insane.”

“I am neither, Anakin. I am trying to impress upon you a fundamental truth of our relationship. A fundamental truth of yourself’.”

“What if I really wanted the Corellian system? The whole Five Brothers-all of it?”

“Then it would be yours. You can have the whole sector, if you like.” The twin gleams within the shadow sharpened. “Do you understand, now? I will give you anything you want.””

  • Aftermath - Ryloth and one of its moons are habitable. Not sure if the moon was naturally habitable.
    – Wad Cheber
    Commented Feb 11, 2016 at 3:24
  • 1
    @WadCheber The moon is naturally habitable. The proof is in Lords of the Sith. I've posted it as an answer. Thanks for the tip.
    – Null
    Commented Feb 11, 2016 at 5:23

There is a canonical example: Nar Shaddaa (Ultimate Star Wars) is a habitable moon in orbit about Nal Hutta (Clone Wars), which is the home planet of the Hutts - so this means there are two habitable worlds in the Hutt home system.

There are also quite a few examples from Legends - of particular note is the Corellian system, which hosted five habitable worlds: Corellia, Selonia, Drall, Tralus, and Talus.

  • I'm struggling to see a canon confirmation that Nar Shaddaa is in the same system as Nal Hutta. What does it say in Ultimate Star Wars?
    – Valorum
    Commented Feb 11, 2016 at 2:25

In both canon and Legends, the most iconic example, in my opinion, is the Kashyyyk system, which bears both the Wookiee homeworld of Kashyyyk and the Trandoshan homeworld of Trandosha. There is possibly no greater rivalry of species in the history of Star Wars than that between the Wookiees and the Trandoshans, nor one as well illustrated and published. One can say they are yet another manifestation of the eternal battle between good and evil, just like the Jedi and the Sith. Thankfully, this concept has been preserved somewhat into canon.


The Ryloth system includes the planet Ryloth, which is the homeworld of the Twi'lek species. The system also includes a moon with native life:

Trees forty meters high stood sentinel around the pad. The arm-thick, ubiquitous vines so prevalent on the moon hung like a thousand nooses from the trees’ thick limbs. Screeches and howls from the native fauna punctuated the air. The towering jungle canopy blocked his view of Mors’s well-appointed command center, which had been built by Twi’lek forced labor.

Lords of the Sith, p. 36

Both the planet and moon are canon.

Credit to @WadCheber for the hint in one of his comments which reminded me of the moon's depiction in Lords of the Sith.


NOTE: The answer to your question is YES. What follows is by no means complete. It is also by no means accurate, since I was basically just scrolling through a bunch of pages in Wookieepedia.

  • 1
    Another reason this isn't complete--other than being really hard with bed wi-fi--is that I realized after doing this much that it was simply a yes/no question.
    – CHEESE
    Commented Feb 11, 2016 at 1:10
  • Don't forget when Darth Bane mounted the dxrel and flew between Dxun and Onderon after retrieving Freedom Nadd's holocron.
    – iMerchant
    Commented Feb 12, 2016 at 10:02

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