How can you track changes in the colours of stars across hundreds of years, through differences in technologies, concepts and even languages? Dagmar L Neuhäuser and Ralph Neuhäuser show how ancient observations can still inform astrophysics today.

中文翻译：

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参宿四不断变化的色调

您如何通过技术、概念甚至语言的差异追踪数百年来星星颜色的变化？Dagmar L Neuhäuser 和 Ralph Neuhäuser 展示了古代观测如何仍然可以为今天的天体物理学提供信息。