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F star

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noun Astronomy.
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.
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QUIZ YOURSELF ON "IS" VS. "ARE"
"Is" it time for a new quiz? "Are" you ready? Then prove your excellent skills on using "is" vs. "are."
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IS and ARE are both forms of which verb?
Compare spectral type.

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, ยฉ Random House, Inc. 2022

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