Spotted an article by Bob King while reading in bed. Entitled, Colored Double Stars, Real and Imagined, the article has a seasonally appropriate photo attached: a tree decorated with colourful lights. It addresses the issue of interpretation when stars of different hues are close together. The author cautions that we may experience "spurious color!" It includes a table of colourful stars. I wonder how many of those I have viewed.
Indeed, I have viewed all.
Spotted some typos in the table and reported them. Bob fixed up the list.