Well, did I mention Bortron 7?
That’s where I’m from, it’s a slice of heaven
Everyone there is sweet as cake
And we don’t mind if we make mistakes
Jet singing about Bortron 7

Bortron 7 is the seventh planet orbiting the red dwarf star Bortron. The Propulsion family comes from Bortron 7. The Propulsion family visits Bortron 7 in Back to Bortron 7.

Bortron 7 is warm and dry. It is orange with purple patches. From far away, the orange looks red, but its surface is actually orange.


Long ago, the Bortronians built so many cities that they ran out of space. They also piled up trash. But they solved those problems by building cities underground and recycling, respectively.[1]


Places of Interest

  • Capital City:
Celery: We've been here such a long time, we learned how to preserve the natural environment, and sometimes, even improve it.
Carrot: In fact, we're flying over Bortron 7's capital city, and yet you'd hardly know it's there!
Celery and Carrot about Bortron 7
Screenshot 20180323-211016


  • Including Bortron 7, there are 9 planets orbiting Bortron.
  • Bortron 7 has three moons.
  • 6 Bortronian months are equal to 1 Earth hour.
  • As revealed in I Feel the Earth Move, Bortron 7 has a hiccuping volcano.
  • Bortron has its very own server in the PBS Kids game, Kart Kingdom. It replaced the Sodor server from Thomas and Friends.
  • According to Craig Bartlett, the Bortronians are neither biologically male nor female, although most of them present as either masculine or feminine, and don't mind being seen as men or women by Earthies. This makes them all technically non-binary. However, it is unknown how Bortronians reproduce, and the "male" Bortronians are shown as quite different in appearance from "female" Bortronians. This could possibly be a retcon because this was never discussed in the show, and was only confirmed after the show ended. However, the Bortronians eschew traditional gender roles, with Celery being a driver, Carrot being the house cook who stays home, and Jet being emotional.


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