He told the Mail Online: 'the "phenomenon" has the same greenish colour as the Northern Lights. That means the Northern Lights is the source of light causing the strange phenomenon.'

他吿诉“每日邮报”说，“该‘现象’(水母状物体)和北极光呈现一样的绿色，这意味着，奇异现象是由北极光引起的。”

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It is an important term in photography to denote the quality of a light source. Sources rich in red light have a low colour temperature and sources rich in blue light have a high colour temperature.

色温是光源质量的指示，对摄影方面很重要。低色温的光源的光源偏红，高色温的光源偏蓝。

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In this paper we have discussed the relation between the whiteness of the light source and lightness, achromatic stimulus sensation and colour temperature etc.

本文探讨了光源色白度与明度、无色彩感和色温等因素的关系。

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