“supergiant”的概念、定义、翻译、参考文献-科学参考

supergiant

Physics

The largest and most luminous type of star. They are formed from the most massive stars and are therefore very rare. They lie above the giants on the Hertzsprung–Russell diagram. See also stellar evolution.

Astronomy

The largest and brightest type of star, with a luminosity of about 10 000–100 000 times the Sun’s, and a diameter from 20 to several hundred times the Sun’s. Stars of at least 10 solar masses become supergiants when they swell up and leave the main sequence towards the end of their lives. They occupy a band at the top of the Hertzsprung–Russell diagram and are of luminosity class I; this can be subdivided into Ia, Iab, and Ib, from the most to the least luminous examples. Rigel and Betelgeuse are well-known supergiants.

Space Exploration

The largest and most luminous type of star known, with a diameter of up to 1 000 times that of the Sun and an apparent magnitude of between 0.4 and 1.3. Supergiants are likely to become supernovae.

单词	supergiant
释义	supergiant Physics The largest and most luminous type of star. They are formed from the most massive stars and are therefore very rare. They lie above the giants on the Hertzsprung–Russell diagram. See also stellar evolution. Astronomy The largest and brightest type of star, with a luminosity of about 10 000–100 000 times the Sun’s, and a diameter from 20 to several hundred times the Sun’s. Stars of at least 10 solar masses become supergiants when they swell up and leave the main sequence towards the end of their lives. They occupy a band at the top of the Hertzsprung–Russell diagram and are of luminosity class I; this can be subdivided into Ia, Iab, and Ib, from the most to the least luminous examples. Rigel and Betelgeuse are well-known supergiants. Space Exploration The largest and most luminous type of star known, with a diameter of up to 1 000 times that of the Sun and an apparent magnitude of between 0.4 and 1.3. Supergiants are likely to become supernovae.
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