F star

noun

Astronomy.

1. a white to yellow star, as Canopus, Polaris, or Procyon, having a surface temperature between 6000 and 7500 K and an absorption spectrum in which the pair of ultraviolet lines of singly ionized calcium and the Balmer series of hydrogen are of about equal strength.

Example Sentences

“If it is circumstellar, we have to understand why a boring F star is doing this and how common it is,” Sigurdsson says.

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They had spotted something bigger than a planet orbiting an F star, but it wasn't round.

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This seemed to be confirmed a few months later when another oblong shell passed across the F star, this time in an orbit farther out than the first, and at a 40° angle to the first orbital plane.

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