Astronomers report that white dwarf stars can appear in a wider range of true colors than previously appreciated, including an example that would look green to the human eye. The finding comes from work by researchers at the University of Warwick, who analyze how the stars’ light is emitted and how it maps onto perceived colors.
Across coverage, outlets emphasize that the “green” star is presented as the first such case discovered, while also noting that other white dwarfs can show colors such as pink and purple. The results reframe how scientists interpret observed stellar hues by pointing to differences between apparent color and the underlying spectral energy distribution. The story is largely driven by the unexpected spread of colors within the same class of stellar remnants.
While the reports differ in how prominently they highlight the green example versus the broader color range, all describe a study that expands expectations for the optical appearance of white dwarfs and suggests more diverse atmospheric and physical conditions than standard assumptions imply.
