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Memory Alpha

Theta VII was the inhabited seventh planet in its system. It was the home of the Theta VII colony.

In 2268, the USS Enterprise was to deliver vaccines to this planet, after rendezvousing with the USS Yorktown, from which they were to procure the vaccines. They were delayed by an investigation into the dikironium cloud creature. (TOS: "Obsession")

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Background information[]

This planet was only mentioned in dialogue.

According to Star Trek: Star Charts ("United Federation of Planets I"), in 2378, Theta VII was a Federation member.


According to Star Trek Maps (p. 30), the Theta system consisted of a blue giant star orbited by eleven planets. Theta VII was the sole M-class planet.

According to the FASA source book The Federation, Theta VII was located in the Theta Gamma (β) system.

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