How Far Away Is It - 06 - Distant Stars (1080p)

Text at In this segment of our video book, we take a close look at light in order to understand the Hertzsprung - Russell diagram. We explain that by distant star, we mean a star too far away for parallax distance measurements. We then go into the dual nature of light as both a particle and a wave. Viewing light as a wave, we cover the full electromagnetic spectrum, followed by blackbody radiation. Then using known luminosity from nearby stars, we map star color to te