FK Com-Type 'Platypus Stars'

BP Piscium was initially thought to be a young star, but astronomers later concluded that it actually fitted a small group of old stars, the FK Com-type stars.
BP Piscium also is thought to have eaten a large planet or a small companion star.
In this article it is argued that BP Piscium is in fact a white dwarf that has not yet thrown off its outer gas layers as a planetary nebula, and that this is also true for the other FK Com-type stars.