天文分野におけるサイエンスデザインの必要性 : 天体の色に関して

抄録

We propose a science design based on the color science for astronomical and science education. There are many colorful visual pictures in recent astronomy; e.g., "colorful photographs (images)" taken by the Hubble Space Telescope or the Subaru Telescope of Japan. Besides X-ray and radio images, the color of these "colorful images" in the optical band is not true but artificial for popular purposes. In addition, people often have wrong images of the color of celestial bodies; e.g., some people think that the color of the sun is yellow, but the true color of the sun is white. We thus investigate and calculate the true color of celestial bodies such as stars and nebulae, by using spectrum data of stars and nebulae in the optical band, calculate their sRGB values based on the color science, and display them. We show and discuss several results in this article.