Perfectly visible to the naked eye with a magnitude of 1.6 and a surface area of almost 2° (four times the Full Moon), it is the object in the sky whose representations are the oldest in the history of humanity; if we exclude the Sun and the Moon. Concordant sources indicate in fact that the shamans of the Neolithic period (-9000/-3300) saw, through its appearance in the sky, the announcement of the harvest period.