- The following article is excerpted from J. Allan Hobson’s 2002 book “The Dream Drugstore: Chemically Altered States of Consciousness.” Hobson, a Harvard psychiatrist, pioneering sleep researcher, and prolific author, died in 2021.
- Zeta Cephei (Wikipedia)
Zeta Cephei (ζ Cep, ζ Cephei) is a red supergiant star, located about 1000 light-years away in the constellation of Cepheus. Zeta Cephei marks the left shoulder of Cepheus, the King of Ethiopia. It is one of the fundamental stars of the MK spectral sequence, defined as type K1.5 Ib.