The gaseous mass or envelope surrounding a celestial body, especially the one surrounding Earth, and retained by the celestial body's gravitational field .

大气层指环绕天体的气团或气层，尤指环绕地球的气团，被天体重力场所束缚。

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WASP-12b is a gaseous planet, about 1.5 times the mass of Jupiter, and almost twice the size.

WASP - 12 b是一颗气态行星，大约是木星质量的1.5倍，体积的2倍。

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Estimates of their mass also indicate that they are rocky planets, rather than being gaseous like Jupiter.

通过对它们质量的估计得知它们是岩石行星，而不是像木星那样的气态行星。

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Finally, it will dump a large proportion of its gaseous mass to leave a hot, compact and faintly glowing ember.

BBC: 'Dirty' stars hint at Sun's future