这种云彩被称为“夜耀云”(night-shining clouds)，构成于距地球76到85公里的地面。YGG,它们构成于两头层与热层的界线限左近，所谓两头层顶的地带。
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Photographers and other sky watchers in Omaha, Paris, Seattle, and other locations have run outside to capture images of what scientists call noctilucent (”night shining”) clouds.
奥哈马、巴黎、西雅图和其它地区的摄影师及天空观察家们跑到野外去捕捉夜晚发光的云，科学家们称其为“夜光云”（noctilucent cloud)。
Polar mesospheric, or noctilucent ("night shining"), clouds usually are seen at twilight, following the setting of the sun below the horizon and darkening of Earth's surface.
极地气层云，或者说晚霞，通常是那些在黎明前看到的云朵，伴随着地平线以下落幕的太阳和黑暗的地球表面。
THE comings and goings of noctilucent or "night shining" clouds in the extreme upper atmosphere may be linked to the sun's rotation.
高层大气中时隐时现的发光的云团可能跟太阳的自转有关。
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