Was there ever a planet named Vulcan, as in the Star Trek series?

In 1845, scientists believed that the only explanation for Mercury’s confusing and erratic orbit of the sun would be the presence of gravitational pull from an unseen nearby planet, which they named “Vulcan.” Eventually Albert Einstein, through his theory of relativity, explained Mercury’s behaviour, thus eliminating the hypothetical planet Vulcan — until it was resurrected by Gene Rodenberry in Star Trek.

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