斯皮策能够感觉到冷发光的尘埃，这是只有约80开尔文(零下316华氏度)。
Spitzer was able to sense the glow of the cool dust, which is only about 80 Kelvin (minus 316 degrees Fahrenheit).
光环中的尘埃非常冷——摄氏零下193度——但它因为热辐射而发光。
The ring dust is very cold – minus 193C – but it shines with thermal radiation.
光环中的尘埃非常冷——摄氏零下193度——但它因为热辐射而发光。
The ring dust is very cold – minus 193C – but it shines with thermal radiation.
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