The main goal of this work was to test the relation between Astrological Belief (AB) to a plethora of psychological constructs. To avoid a very long task, the study was divided into three separate studies independently (but simultaneously) released. Study 1 explored the relation between AB, Locus of Control, Optimism, and Openness to Experience. Study 2 tested two astrological hypotheses (the sun-sign and water-sign effects), and explored the relation between personality, AB, and zodiac signs. Study 3 explored the relation between AB and paranormal beliefs. Recruitment followed both a snowball procedure and it was also posted in social media groups of various Greek university departments. The number of participants varied from 511 (Study 2) to 217 (Study 3). Across the three studies AB was positively correlated with gender (women held stronger astrological beliefs), age, Extraversion, external Locus of Control, and paranormal beliefs (religiosity, psi, witchcraft, superstition, spiritualism, extraordinary life forms, precognition). Results failed to replicate the sun-sign and water-sign effects.