Glossary term: O型星
Description: O型星是指光譜類型為 "O "的恆星。天文學家通過光譜中電離氦的吸收線來識別O型星。它們的典型(有效)溫度超過約 30,000 開爾文(K)。與其他恆星相比,人眼中的O型星呈藍白色,除非星際紅化或大氣紅化產生重大影響。O 型星是主要光譜分類中最熱、最藍的恆星。主序上的 O 型星質量最大(約 15 個太陽質量以上),氫燃燒壽命最短,因此大多出現在恆星形成區內和周圍。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
This is an automated transliteration of the simplified Chinese translation of this term
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Related Diagrams
Spectrum of an O-type star
Credit: IAU OAE/SDSS/Niall Deacon
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