White Dwarfs Aren’t Just White. Scientists Discover Dying Stars Turning Pink and Green

Astronomers find that a white dwarf’s density and the kind of material it absorbed from its surroundings can produce a rainbow of shades in the star’s atmosphere.

白矮星并非只有白蓝色，新研究认为大气密度和吸积的行星物质会让部分白矮星呈现粉、绿、紫等颜色。研究分析152颗近距白矮星，仅5颗颜色异常，此前认为白矮星多为蓝色可能是观测偏差。